Video Transmission Systems – Hollyland

Cosmo C2

hollyland — Thu, 13 Feb 2025 09:00:26 +0000

3,000 ft (1,000 m) LOS Range 33ms Low Latency

Seamless Frequency Hopping UVC & RTMP NDI HX3 Support

Designed by experts with profound knowledge and market insight, Cosmo C2 features a powerful 2TX & 1RX design for enhanced wireless competence and boasts an ultra-long LOS range of 3,000ft (1,000m) and a super-low latency of just 33ms. Adopting the newly self-developed HEVO 2.0 technology, it supports seamless frequency hopping, thus ensuring a smooth and immersive experience. Combined with other powerful features and functions like NDI, UVC and RTMP streaming, this innovative kit will prove to be a great help for multi-camera livestreaming, broadcast, and more.

Simplifying Setup

2TX & 1RX Solution

Cosmo C2 enables transmission between two transmitters and one receiver. This setup reduces the number of devices and cables needed, lessens wireless interference, and guarantees better synchronization of video feeds, all of which add to a more productive workflow.

1,000m (3,000ft)

More Range

Cosmo C2 boasts an ultra-long line-of-sight (LOS) transmission range of up to 1,000m (3,000ft), making it ideal for professional use in large venues, open areas, and complex buildings.

33ms

Less Latency

Cosmo C2 achieves a super-low latency of just 33ms^[1] and the latency remains the same over extended distances, thus ensuring smooth and reliable transmission.

Brand New

HEVO 2.0

Following a comprehensive upgrade, HEVO 2.0 technology redefines the experience.
With extended transmission range, lower latency, and support for dual transmitters and one receiver, Cosmo C2 aims to elevate your workflow.

Compare with HEVO 1.0

Up to

18% faster

Latency

Up to

186% Greater Range

Wireless transmission capability

Intelligent

Seamless Frequency Hopping

Powered by self-developed HEVO 2.0 technology, Cosmo C2 automatically detects surrounding frequency interference and seamlessly switches to a clean channel, which ensures uninterrupted transmission and an immersive experience.

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Streamlined

Live Streaming

Cosmo C2 supports UVC streaming^[2] as well. With a USB-C to USB-C or USB-C to USB-A cable^[3], you can directly connect the receiver to any computer without the need for capture cards, simplifying the real-time transmission of on-site video.

Cosmo C2 enables RTMP streaming, a streaming method widely used for its low latency and compatibility with a wide range of live streaming platforms, such as YouTube and Twitch.

Improve Your Workflow

NDI Protocol Support

The receiver of Cosmo C2 supports Network Device Interface (NDI) protocol, allowing video streams to be transmitted over a single network cable. This eliminates the complexity and clutter of connections and creates a cleaner production space.

Smoother

FPS Booster^[4]

Through brand-new frame rate compensation algorithm, the RX can convert low frame rate inputs such as 24/25/30P to a high frame rate output at 60P, making the visuals smoother.

low frame rate

high frame rate

Seamless Connectivity

Comprehensive Ports

HDMI & SDI full coverage

Multiple Ports
Unlimited Creation

HDMI & SDI full coverage

Multiple Ports
Unlimited Creation

1HDMI OUT B

23G-SDI OUT B

3USB-C

4RJ-45 Port

5HDMI OUT A

63G-SDI OUT A

7DC Power Input

1USB-C

2HDMI IN

33G-SDI IN

43G-SDI LoopOut

5DC Power Input

Flexible

Fractional Frame Rate

Cosmo C2 can transmit HDMI/SDI fractional frame rate input and output, catering to your flexible needs while shooting.

Broadcast

EFP

Events

Weddings

Concerts

Church

Unfailing Power

Versatile Power Options

The Cosmo C2 transmitter supports DC (locking) and NP-F batteries while the receiver supports DC (locking) and V-Mount batteries, ensuring your production keeps going at all times.

Customizable

Frozen Frame

When transmission is interrupted, Cosmo C2 freezes the last frame of the video feed, preventing the display of the manufacturer’s logo. You can also customize the logo image as you please with a USB flash drive.

Output Image

Customized Image

Choose Your Cosmo C2

Whether it is live production or professional filming, you can find a set of equipment that meets your needs.

Wireless Video Transmitter x 2

Wireless Video Receiver x 1

Blade Antenna x 7

USB-C OTG Adapter x 1

12V/2A DC Power Adapter x 1

Cold Shoe x 2

Expansion Accessory x 2

Cosmo C2 Carry Case 01 (2TX+1RX) x 1

Warranty Card x 1

Compliance Information Card x 1

User Manual x 1

Packing List Card x 1

Wireless Video Transmitter x 1

Wireless Video Receiver x 1

Blade Antenna x 5

USB-C OTG Adapter x 1

12V/2A DC Power Adapter x 1

Cold Shoe x 1

Expansion Accessory x 1

Cosmo C2 Carry Case 02 (1TX+1RX) x 1

Warranty Card x 1

Compliance Information Card x 1

User Manual x 1

Packing List Card x 1

Wireless Video Transmitter x 1

Blade Antenna x 2

USB-C OTG Adapter x 1

Warranty Card x 1

User Manual x 1

Packing List Card x 1

Upgrade Your Setup More Accessories

Crab Clamp

D-TAP to DC 2.1 Power Supply Cable

Soft Antenna

Mushroom Antenna

Specs

Transmitter

Receiver

Port

DC Input: 2.0mm Core Socket
HDMI Input: HDMI 1.4b
SDI Input: 3G SDI
SDI Loopout: 3G SDI
USB-C: USB 2.0 OTG
Antenna: SMA Male

DC Input: 2.0mm Core Socket
HDMI Output: HDMI 1.4b × 2
SDI Output: 3G SDI × 2
USB-C: USB 2.0 OTG
Antenna: SMA Male
Ethernet Port: RJ45,100 Mbps

Power Supply

NP-F Battery Voltage Range: 6.8 – 8.4V
DC Voltage Range: 6 – 16V

V-Mount Battery Voltage Range: 11.8 – 16.8V
DC Voltage Range: 6 – 16V

Power Consumption

< 10W

< 11W

Net Weight

210g

440g

Dimensions (L × W × H）

114.8 × 69 × 35.5mm (4.5 × 2.7 × 1.4″)

142 × 87.2 × 33.2mm (5.6 × 3.4 × 1.3″)

Operating Frequency

5.15 – 5.85 GHz

Transmit Power

< 23 dBm

Receiver Sensitivity

−90 dBm

Latency

≥ 33ms

Bandwidth

40 MHz

Input/Output Format

HDMI/SDI Input
SDI Loopout

720p/59.94/60
1080i50/59.94/60
1080p23.98/25/29.97/30
1080p50/59.94/60

HDMI/SDI Output

720p50/59.94/60
1080i50/59.94/60
1080p23.98/24/25/29.97/30
1080p50/59.94/60

Note:
1. The data is based on Hollyland laboratory results.
2. Mac only supports receiving one of the UVC videos.
3. The cable needs to be a data cable.
4. FPS Booster is disabled by default. When enabled, the RX end screen will display "FPS Booster."

Cosmo C1

hollyland — Fri, 24 Mar 2023 05:42:59 +0000

Video Transmission System

Cosmo C1

Stable, You Get It

HEVO
Solution

Embedded UVC for
Direct Live Streaming

Ultra-low
Latency of 0.04s

Seamless Channel
Switch

Seamless
Channel Switch

HDMI & SDI
Dual Interfaces

1,000ft (300m)
Transmission Range

Full HD

Multiple Power
Supply Options

HEVO, the Game Changer

No Flickering, No Black Screen

AFH

Adaptive Frequency Hopping

HEVO, a seamless transmission technology empowered by adaptive frequency hopping (AFH), brings exceptional reliability, boosted signal strength, and superior anti-interference performance. Say goodbye to flickerings, pauses, and black screens throughout the production.

Traditional Wireless Systems

Cosmo C1 with HEVO

Cosmo C1 with
HEVO

HEVO — Fast, Stable, and Smart

Seamless Channel Switch — You'll Never See It

HEVO completes synchronous frequency hopping in 0.001s at both the receiving and transmitting ends, ensuring picture integrity at the very instant of the frequency switch. In either the auto or the manual switch mode, your live streaming and production monitoring will no longer experience black screens.

HEVO with Embedded UVC

All You Need Is a USB-C Cable

With HEVO, UVC is embedded in the Cosmo C1. It simply uses one USB-C cable to transmit 1080p60 HD videos to your computer for direct live streaming. No need for a video capture device or additional settings. It just works!

Note: The embedded UVC is only for progressive (p) scan signals.

HEVO for Zero-Hit Latency

A Silver Bullet For Focus Puller

HEVO, based on Hollyland's self-developed protocol, improves coding efficiency by 30% with H.265 (HEVC). The acceleration module embedded in the Cosmo C1 achieves an ultra-low 0.04s latency. There is virtually no compromise in image output and transmission latency within the 1,000ft (300m) LOS range.

1,000ft

Range

A Wide Range of Device Compatibility

HDMI & SDI IN/OUT + SDI LOOPOUT

The Cosmo C1 allows HDMI & SDI connections on both the TX and RX, plus an SDI LOOPOUT interface on the TX. Your solution search ends here because it works with any mainstream camera, monitor, or switcher.

Transmitter
HDMI IN

It supports input of 1080p 60fps videos.

Transmitter
SDI Input Port

Supports input of 1080p/60fps videos.

Transmitter
SDI Loop Out Port

Supports output of 1080p/60fps videos.

Transmitter
DC Power Input Port

6-16V

Receiver
HDMI Output Port

Supports output of 1080p/60fps videos.

Receiver
SDI Output Port 1

Supports output of 1080p/60fps videos.

Receiver
SDI Output Port 2

Supports output of 1080p/60fps videos.

Receiver
DC Power Input Port

6-16V

Transmitter
HDMI IN

It supports input of 1080p 60fps videos.

Transmitter
SDI Input Port

Supports input of 1080p/60fps videos.

Transmitter
SDI Loop Out Port

Supports output of 1080p/60fps videos.

Transmitter
DC Power Input Port

6-16V

Receiver
HDMI Output Port

Supports output of 1080p/60fps videos.

Receiver
SDI Output Port 1

Supports output of 1080p/60fps videos.

Receiver
SDI Output Port 2

Supports output of 1080p/60fps videos.

Receiver
DC Power Input Port

6-16V

Locked to the Max

Patented Ball Catch Design

The patented ball catch design on the backplane can hold the NP-F battery firmly in place. Be rest assured of a secured power supply.

Low-Battery Indicator

A Good Routine to “Save Your Work”

The low-battery indicator helps eliminate another last-minute panic, because the red LED will remind you in advance of a dying battery.

Vertical & Horizontal Mount Design

Built to Match & Easy to Mount

More mounting methods are available on both the transmitter and receiver. The cold shoe mounting design at the front allows you to fix and lay the device horizontally, ideal for achieving a balanced setup on cameras and stabilizers. Its 1/4″-20 threaded hole helps mount the device on any tripod.

Unfailing Power

Three Power Supply Options

Three power supply options are available for different shooting scenarios. DC power supply is ideal for indoor shooting conditions, and the use of NP-F batteries and USB-C chargers facilitates mobility and supports your run-and-gun tasks.

Cosmo C1 Applications

The Cosmo C1 is an ideal tool for professional filmmaking and micro-scale events, such as live streaming and commercial shooting.

Packing List

COSMO C1 – 1TX to 1RX

Transmitter x1

Receiver x1

Soft Antenna x4

Mushroom Antenna x2

Cold Shoe x1

Magic Arm x1

USB-C Converter x1

DC Adapter x1

Expansion Accessory x1

User Manual x1

Warranty x1

Upgrade Your Setup

More Accessories

Soft Antenna
HL-ATN02

Crab Clamp
HL-CC01

D-TAP to DC 2.1 Power Supply Cable
HL-DT02

Screw Fitting 02
HL-SF02

Upgrade Your Setup

Soft Antenna
HL-ATN02

Crab Clamp
HL-CC01

D-TAP to DC 2.1 Power Supply Cable
HL-DT02

Screw Fitting 02
HL-SF02

More Accessories

Specifications

Interface

Antenna Interface (RP-SMA Male)
HDMI Input (Type A Female)
SDI Input
SDI Loopout
DC Input
USB-C

Power Supply

DC Power Input: 6–16V
USB-C Power Supply: 5V/2A
Battery Power Supply: 6-16V

Power Consumption

<9W

Weight

214g (7.5oz) (Exterior Antenna Excluded)

Dimensions

(L x W x H) 115mm x 70mm x 32mm (4.5" x 2.7" x 1.3")
(Battery Plate Excluded)

Input/Output Video Format

HDMI:
480p60
576p50
720p50/59.94/60
1080i50/59.94/60
1080p23.98/24/25/29.9/30
1080p50/59.94/60
SDI:
1080p60/59.94/50 (Level A)
1080p60/59.94/50 (Level B)
1080i60/59.94/50
1080p30/29.97/25/24/23.98
1080psf25
720p60/59.94/50
1080psf24/23.98

Frequency

5.1GHz–5.8GHz

TX Power

Maximum 22dBm

RX Sensitivity

Transmission Latency

0.04s

Bandwidth

20MHz

Interface

Antenna Interface (RP-SMA Male)
HDMI Output (Type A Female)
SDI Output *2
DC Input
USB-C

Power Supply

DC Power Input: 6–16V
USB-C Power Supply: 5V/2A
Battery Power Supply: 6-16V

Power Consumption

<9W

Weight

210g (7.4oz) (Exterior Antenna Excluded)

Dimensions

(L x W x H) 115mm x 70mm x 32mm (4.5" x 2.7" x 1.3")
(Battery Plate Excluded)

Input/Output Video Format

HDMI:
480p60
576p50
720p50/60
1080i50/60
1080p24/25/30
1080p50/60
SDI:
1080p60/50 (Level A)
1080i60/50
1080p30/25/24
1080psf25/24
720p60/50

Frequency

5.1GHz–5.8GHz

TX Power

RX Sensitivity

–80dBm

Transmission Latency

0.04s

Bandwidth

20MHz

Syscom 421S

hollyland — Fri, 24 Mar 2023 05:41:35 +0000

Syscom 421S

1,800ft (550m) Wireless Audio & Video Transmission System

Synchronized A&V
Transmission with 4 TX

1,800ft (550m)
Transmission Range

0.07s
Low Latency

SDI + HDMI
Input & Output

1080p
Full HD

RS422/RS485/
LAN Control

Tally Control

RTSP Streaming

Synchronized A&V Transmission with Up to 4 TX

A&V transmission is available with up to 4 transmitters on the same RF channel, featuring strong anti-interference capabilities.

1,800ft (550m) Transmission Range and 0.07s Low Latency

The Syscom 421S features a transmission range of up to 1,800ft (550m) at an ultra-low latency of 0.07s for efficient multi-camera monitoring and video feed.

SDI + HDMI Input and Output

The transmitter has one SDI and one HDMI input interfaces and the receiver is designed with four SDI and four HDMI output interfaces.

SDI + HDMI Input and Output

The transmitter has one SDI and one HDMI input interfaces and the receiver is designed with four SDI and four HDMI output interfaces.

RS485/RS422/LAN Control

RS485/RS422 compatibility provides easy control on PTZ cameras and switchers, and the LAN port supports a wired network connection.

Tally Light Support

The Syscom 421S supports tally lights to achieve the best production quality for multiple-camera setups.

RJ45 Pinout Support

The Syscom 421S supports the RJ45 standardized networking interface for Ethernet passthrough between the RX and each TX as well as RTSP streaming.

Wide-Range Applications

The Syscom 421S is designed to meet video production needs of varying scales. By allowing up to 4 systems (16 TX in total) to work simultaneously, it is widely used for live broadcasting and production for weddings, sports events, music concerts, corporate meetings, church services, and more.

Music Concerts

Weddings

Sports Events

Corporate Meetings

Music Concerts

Weddings

Sports Events

Corporate Meetings

Packing List

Syscom 421S – 4TX & 1RX Package

Transmitter x 4

Receiver x 1

5GHz Antenna x 25

User Manual x 1

7-Inch Magic Arm x 4

OTG Cable x 1

DC Conversion Cable x 4

RS485/RS422 Cable x 5

Power Adapter x 1

Syscom 421S – 2TX & 1RX Package

Transmitter x 2

Receiver x 1

5GHz Antenna x 15

User Manual x 1

7-Inch Magic Arm x 2

OTG Cable x 1

DC Conversion Cable x 2

RS485/RS422 Cable x 3

Power Adapter x 1

Specifications

Interface

SDI Input (BNC Female)
HDMI Input (Type A Female)
3.5mm Tally Output
Antenna Interface (RP-SMA Male) *4
DC Power Input
USB-C
LAN
RS485/RS422

Power Supply

7–36V DC

Power Consumption

<12W

Weight

431.5g (15.2oz) (External Antenna Excluded)

Dimensions

(L x W x H): 88mm x 30mm x 144mm (3.5" x 1.2" x 5.7")
(External Antenna and Battery Plate Excluded)

Input/Output Video Format

HDMI:
480p60 Hz
576p50 Hz
720p50/60 Hz
1080i50/60 Hz
1080p24/25/30/50/60 Hz

SDI:
720p50/60 Hz
1080i50/60 Hz
1080p24/25/30/50/60 Hz

Frequency

5.1–5.9GHz

TX Power

Maximum 22dBm

RX Sensitivity

Transmission Latency

0.07s

Bandwidth

40MHz

Interface

SDI Output (BNC Female) *4
HDMI Output (Type A Female) *4
Antenna Interface *4 (RP-SMA Male)
DC Power Input
USB-C
LAN
RS485/RS422

Power Supply

18–36V DC

Power Consumption

<32W

Weight

1621g (57.2oz) (External Antenna Excluded)

Dimensions

(L x W x H): 148mm x 62mm x 242mm (5.8" x2.4" x 9.5")
(External Antenna and Battery Plate Excluded)

Input/Output Video Format

HDMI:
480p60 Hz
576p50 Hz
720p50/60 Hz
1080i50/60 Hz
1080p24/25/30/50/60 Hz

SDI:
720p50/60 Hz
1080i50/60 Hz
1080p24/25/30/50/60 Hz

Frequency

5.1–5.9GHz

TX Power

RX Sensitivity

–90dBm

Transmission Latency

0.07s

Bandwidth

40MHz

Mars 400S Pro

hollyland — Fri, 24 Mar 2023 03:58:56 +0000

Mars 400S Pro

Awaken the Power

Brand-new
Design

0.1s
Low Latency

HDMI & SDI

Multiple Fan
Modes

Direct Video for
Live Streaming

Optimized
Monitoring Feed

Multiple Power
Supply Options

In-App Channel Scan
& Firmware Upgrade

Next-Level Wireless
Video Transmission

With a brand-new design, 12Mbps ultra-high data rate, SDI & HDMI dual interfaces, and other features built for professional filmmaking, the Mars 400s Pro brings wireless video transmission to the next level, empowering filmmakers, crews, and content creators.

12Mbps Data Rate for a Crisp, Fine-Detailed Look

At an upgraded data rate of 12Mbps, the system can easily handle video transmission at 1080p 60 fps, ensuring quality of live broadcasts and preserving details of every picture.

12M

Numbers Matter:
0.1s & 400ft (120m)

With a transmission distance of up to 400ft (120m) and latency of less than 0.1s, wireless video transmission stays uninterrupted even in a studio that is as big as a soccer field. You can see the video immediately from anywhere.

SDI & HDMI Dual Interfaces

With the classic SDI + HDMI dual interfaces, you can choose either interface for input or output, and there is no need to use the same type of interface for both input and output. Whether it is a DSLR, mirrorless, or professional camera, you can easily connect it to the transmitter. The receiver supports output via both the SDI and HDMI interfaces at the same time. The system supports video transmission between multiple shooting and monitoring devices, meeting the wireless shooting and monitoring needs of most production teams.

Three Cooling Modes Available

There are three cooling modes available: auto, low, and off. The higher the fan speed, the lower the temperature of the device casing. The fan generates very little noise (the maximum noise level is 55dB). You can choose a cooling mode that meets the needs of the actual shooting.

Auto mode: The fan speed is adjusted according to the temperature of the device. To ensure rapid heat dissipation for the device, the fan speed increases as the heat rises.

Low-speed mode: The fan speed is reduced to the minimum, for a lower fan noise level.

Off mode: The fan is completely turned off to ensure no fan noise. This mode is ideal when an absolutely quiet environment is required.

1 Transmitter x 2 Receivers Efficient Monitoring Made Easy

One transmitter can work with up to two receivers. The system allows two parties (such as the director and lighting control personnel) on the shooting site to simultaneously monitor the shooting with high picture quality at the 12 Mbps data rate and ultra-low latency. Using the system, even a big production or live streaming team can achieve efficient team collaboration.

Smart Channel Scan

Smart channel scan finds the best channel for a stable and uninterrupted interference-free wireless transmission.

Note: The optimum channel is automatically selected after powerup, with no manual selection required.

Multiple Power Supply Options

Multiple power supply options ensure continuous power supply for any production situation. These options include an NP-F battery, a power bank, a USB charger with a USB-C interface, or a DC adapter.

5-12V
USB-C

6-16V
DC Power

Easy Monitoring via Mobile Devices

A mobile phone or tablet, with the app installed, can support monitoring. The app also functions as a tiny monitor and provides multiple auxiliary functions such as brightness histogram, frame marking, and zooming. Up to 4 mobile phones or tablets can be used for monitoring at the same time.

Packing List

Mars 400S Pro – 1TX to 1RX

Transmitter x1

Receiver x1

Antenna x5

DC Adapter x1

User Manual x1

Upgrade Your Setup

More Accessories

Mushroom Antenna
HL-ATN03

Lollipop Antenna (Red)
HL-ATN06

Triumph Antenna (Black)
HL-ATN07

1/4 Cold Shoe
HL-CS01

Cold Shoe Gimbal
HL-CS02

Dual-Slot Charger
HL-DC01

Mini HDMI to HDMI Cable
HL-HD01

SDI Cable (1000mm)
HL-SDI1000

Upgrade Your Setup

Mushroom Antenna
HL-ATN03

Lollipop Antenna (Red)
HL-ATN06

Triumph Antenna (Black)
HL-ATN07

1/4 Cold Shoe
HL-CS01

Cold Shoe Gimbal
HL-CS02

Dual-Slot Charger
HL-DC01

Mini HDMI to HDMI Cable
HL-HD01

SDI Cable (1000mm)
HL-SDI1000

More Accessories

Specifications

Interface

HDMI Input (Type A Female)
SDI Input
2 Antenna Interfaces (RP-SMA Male)
DC Input
USB-C

Power Supply

DC Power Input: 6-16V
USB-C Power Supply: 5V/2A
Battery Power Supply: 6-16V DC

Power Consumption

<11W

Weight

206g (7.3oz)

Dimensions

(L x W x H): 110mm x 72mm x 33.5mm (4.33" x 2.83" x 1.32")
(Battery Plate Excluded)

Input/Output Video Format

Frequency

5GHz

Modulation Mode

OFDM

TX Power

Maximum 21dBm

RX Sensitivity

Transmission Latency

0.1s

Bandwidth

20MHz

Interface

HDMI Output (Type A Female)
SDI Output
2 Antenna Interfaces (RP-SMA Male)
DC Input
USB-C

Power Supply

DC Power Input: 6-16V
USB-C Power Supply: 5V/2A
Battery Power Supply: 6-16V DC

Power Consumption

<7W

Weight

206g (7.3oz)

Dimensions

(L x W x H): 110mm x 72mm x 33.5mm (4.33" x 2.83" x 1.32")
(Battery Plate Excluded)

Input/Output Video Format

HDMI:
480p60
576p50
720p50/60
1080i50/60
1080p24/25/30
1080p50/60
SDI:
1080p60/50 (Level A)
1080i60/50
1080p30/25/24
720p60/50
1080i50 (1080psf25/24/23.98 input)
1080i60 (1080psf30/29.97 input)

Frequency

5GHz

Modulation Mode

OFDM

TX Power

RX Sensitivity

-80dBm

Transmission Latency

0.1s

Bandwidth

20MHz

Mars 300 Pro

hollyland — Fri, 24 Mar 2023 03:57:12 +0000

Mars 300 Pro

Dual HDMI 300ft (100m) Wireless Video Transmission System

300ft (100m)
Transmission Range

0.1s
Low Latency

Real-Time App
Monitoring

HDMI IN
& LOOPOUT

Thumbwheel
Switch

Side OLED
Display

External Antenna with Reinforced Signal Strength

Featuring an external antenna design, the Mars 300 Pro provides excellent signal stability for smooth wireless video transmission. With a front mount interface and heat dissipation holes at the side, the unit is compact and sleek for easy storage, setup, and use.

Broader Coverage & Lower Latency

The transmission distance of up to 300ft (100m) supports a wider working range. The 0.1s ultra-low latency ensures instant video transmission, achieving more efficient team collaboration.

All-in-One Thumbwheel Switch

The thumbwheel switch integrates easy menu navigation and settings configuration, and the intuitively designed button delivers a user-friendly control experience.

More Options for Power Supply

The Mars 300 Pro can be charged using a portable power bank via the USB-C interface, a DC adapter, or an NP-F battery. The options and flexibility provide assurance of uninterrupted wireless video transmission.

Dual HDMI Interfaces for Efficient Monitoring

Both the transmitter and receiver are designed with two HDMI interfaces for supporting more than one device connection with simultaneous video input and output. One of the HDMI interfaces on the transmitter is LOOPOUT, which supports direct video output from the camera to a small monitor for the cameraman.

All Key Info at a Glance

The high-definition side OLED display provides at-a-glance status for signal strength, remaining battery life, and active channel. Whether the device is installed vertically or horizontally, the display screen will face you, and you can see what is displayed without lowering the device.

Your Phone Is a Multifunctional Monitor

Team monitoring and collaboration are made easier and more cost-effective by installing the HollyView app on your mobile device. The app also supports additional functions such as 3D LUTs, focus peaking, zebra pattern, and zooming.

Three Packages to Suit Your Needs

Standard

The transmitter comes with built-in antennas to simplify relocation and installation.

Enhanced

The transmitter comes with detachable antennas and an anti-impact design. With a stronger signal and extra protection, this package is suitable for more complex shooting environments.

Single Transmitter

The transmitter comes with an HDMI LOOPOUT interface for video monitoring on or near the camera.

External Antenna with Reinforced Signal Strength

Broader Coverage &
Lower Latency

The transmission distance of up to 300ft (100m) supports a wider working range. The 0.1s ultra-low latency ensures instant video transmission, achieving more efficient team collaboration.

All-in-One
Thumbwheel Switch

The thumbwheel switch integrates easy menu navigation and settings configuration, and the intuitively designed button delivers a user-friendly control experience.

More Options for Power Supply

Dual HDMI Interfaces for Efficient Monitoring

All Key Info at a Glance

Your Phone Is a Multifunctional Monitor

In-App Quick & Easy Firmware Upgrade

To ensure the best device performance, firmware upgrade can be made directly through the HollyView app. It is that easy.

Three Packages to Suit Your Needs

Standard

The transmitter comes with built-in antennas to simplify relocation and installation.

Enhanced

The transmitter comes with detachable antennas and an anti-impact design. With a stronger signal and extra protection, this package is suitable for more complex shooting environments.

Single Transmitter

The transmitter comes with an HDMI LOOPOUT interface for video monitoring on or near the camera.

Packing List

Transmitter x1

Receiver x1

Expansion Accessory x1

Cold Shoe x1

USB-A to USB-C Cable x1

User Manual x1

Transmitter x1

Receiver x1

Transmitter Antenna x3

Expansion Accessory x1

Cold Shoe x1

USB-A to USB-C Cable x1

User Manual x1

Transmitter x1

Expansion Accessory x1

Cold Shoe x1

USB-A to USB-C Cable x1

User Manual x1

Upgrade Your Setup

More Accessories

Mushroom Antenna
HL-ATN03

Lollipop Antenna (Red)
HL-ATN06

Triumph Antenna (Black)
HL-ATN07

1/4 Cold Shoe
HL-CS01

Cold Shoe Gimbal
HL-CS02

Dual-Slot Charger
HL-DC01

Mini HDMI to HDMI Cable
HL-HD01

SDI Cable (1000mm)
HL-SDI1000

Mushroom Antenna
HL-ATN03

Upgrade Your Setup

Mushroom Antenna
HL-ATN03

Lollipop Antenna (Red)
HL-ATN06

Triumph Antenna (Black)
HL-ATN07

1/4 Cold Shoe
HL-CS01

Cold Shoe Gimbal
HL-CS02

Dual-Slot Charger
HL-DC01

Mini HDMI to HDMI Cable
HL-HD01

SDI Cable (1000mm)
HL-SDI1000

More Accessories

Specifications

Interface

HDMl IN (Type A Female)
HDMI LOOPOUT (Type A Female)
2 Antenna lnterfaces (RP-SMA Male)
USB-C

Power Supply

USB-C Supply: 5V/2A
Battery Supply: 5-12V DC

Power Consumption

<11W

Weight

136g (4.8oz)

Dimensions

(L x W x H): 110mm x 61mm x 22.8mm (4.3" x 2.4" x 0.9")
(Battery Plate Excluded)

Input/Output Video Format

HDMI:
480p60
576p50
720p50/59.94/60
1080i50/59.94/60
1080p23.98/24/25/29.9/30
1080p50/59.94/60

Frequency

5GHz

Modulation Mode

OFDM

TX Power

Maximum 21dBm

RX Sensitivity

Transmission Latency

0.1s

Bandwidth

20MHz

Interface

HDMI OUT (Type A Female)
USB-C

Power Supply

USB-C Supply: 5V/2A
Battery Supply: 5-12V DC

Power Consumption

<4W

Weight

128.5g (4.5oz)

Dimensions

(L x W x H): 110mm x 61mm x 22.8mm (4.3" x 2.4" x 0.9")
(Battery Plate Excluded)

Input/Output Video Format

HDMI:
480p60
576p50
720p50/60
1080i50/60
1080p24/25/30
1080p50/60

Frequency

5GHz

Modulation Mode

OFDM

TX Power

RX Sensitivity

–80dBm

Transmission Latency

0.1s

Bandwidth

20MHz

Mars 4K

hollyland — Fri, 24 Mar 2023 03:54:15 +0000

The new Hollyland Mars 4K wireless video transmission system is capable of a 450ft (150m) LOS range and ultra-low latency of 0.06s. The Mars 4K is designed to combine high performance and reliable quality at an affordable price.

4K UHD

450ft (150m) LOS Range

0.06s Low Latency (1080p60 Signal)

SDI & HDMI Support

Broadcast & Production Frame Rate

Flexible Monitoring Options

Smart Channel Scan & Selection

Multiple Power Supply Options

4K UHD Video Transmission

The Mars 4K supports 4K UHD video

transmission at 30fps for the discerning videographer looking

for high-resolution production capability.

*The Mars 4K also supports FHD and HD formats at varying frame rates–24p, 30p, and 60p.

450

ft (

150

m) LOS Range and 0.06s Ultra-low Latency

The Mars 4K achieves an incredible LOS range of 450ft (150m) and ultra-low latency of 0.06s. Its upgraded dual-core codec chip is capable of a data rate ranging from 8 Mbps to 20 Mbps, with 12 Mbps as the default.

* The LOS range of 450ft (150m) is based on interference-free laboratory measurements.

* The latency of 0.06s is based on test data when 1080p60 signals are transmitted in a laboratory.

HDMI & SDI Dual Interfaces

23.98

FPS

29.97

FPS

59.94

FPS

The Mars 4K supports HDMI and SDI input and output for expanded connectivity and compatibility. The SDI provides expanded frame rate flexibility for both broadcast and production frame rate (decimal-point frame rate) standards and compatibility through production and postproduction.

Flexible Monitoring Options

The Mars 4K transmitter is compatible with up to two receivers or four mobile devices with the app installed. Up to four mobile devices with the app installed allow a maximum of four parties (such as the director, producer, light control personnel, and audio personnel) on the site to monitor the shooting at the same time.

Operational Efficient Design Form Factor

The Mars 4K is featured with superior corrosion and wear resistance for outstanding durability. With disassembly-free, bullet-styled antennas attached, the well-thought-out design form factor optimizes operational functionality for fast configurations.

Smart Channel Scan and Selection

Channel assignment options allow for interference-free transmission. A stable connection is possible automatically upon startup. Smart channel scan helps determine which ones are occupied and selectable.

Color LCD

with an Exclusive Rocker-Styled Button

Color LCD

with an Exclusive Rocker-Styled Button

The Mars 4K features a color LCD with a user-friendly UI design that enables quick configurations and status checks. Its uniquely designed rocker-styled button greatly improves the operational setup experience.

Multiple Power Supply Options

The Mars 4K supports a wide range of DC power options–6V to 16V, NP-F batteries, and USB Type-C chargers.

DC power
options

USB Type-C
chargers

NP-F
batteries

Take a closer look?

1 TX to 1RX

Mars 4K
1 TX to 1 RX

Note: The quantity depends on the configuration and is subject to the actual list of equipment purchased.

Transmitter *1

Receiver *1

Antenna *5

Cold Shoe *1

Type-C OTG Converter *1

Self-locking DC Adapter *1

User Guide *1

Warranty Card *1

Expansion Accessory *1

Mars 4K
Transmitter

Note: The quantity depends on the configuration and is subject to the actual list of equipment purchased.

Transmitter *1

Antenna *2

Self-locking DC Adapter *1

User Guide *1

Warranty Card *1

Expansion Accessory *1

Mars 4K
Receiver

Note: The quantity depends on the configuration and is subject to the actual list of equipment purchased.

Receiver *1

Antenna *2

Self-locking DC Adapter *1

User Guide *1

Warranty Card *1

Optional Accessories for More Application Scenarios

Capsule Antenna ×2

Storage Case

Expansion Accessory

Transmitter:

① Antenna Interface

② HDMI Input

③ SDI Input

④ DC Power Input

⑤ Expansion Accessory Mounting Hole

⑥ Color LCD

⑦ Menu Button

⑧ Power Button

⑨ USB-C Interface

⑩ 1/4 Threaded Hole

⑪ Outlet

Receiver:

① Antenna Interface

② HDMI Output

③ SDI Output

④ DC Power Input

⑤ Expansion Accessory Mounting Hole

⑥ Color LCD

⑦ Menu Button

⑧ Power Button

⑨ USB-C Interface

⑩ 1/4 Threaded Hole

⑪ Outlet

Unleash Your Film Production
with the Wireless Bundle

Commercial shooting

Live Event

Wedding shooting

Studio shooting

Build A Shooting Set

Bundle Packing List

This bundle includes two flagship products: Mars 4K and Mars M1 Enhanced, along with a thoughtfully selected set of film accessories.

Buy Now

Parameters

Transmitter

Receiver

Interface

Antenna (RP-SMA male)
HDMI 1.4 b input (Type-A female)
3G-SDI input
DC input (2.0mm core sccket)
USB Type-C (USB 2.0 OTG)

Antenna (RP-SMA male)
HDMI 1.4 b output (Type-A female)
3G-SDI output
DC input (2.0mm core sccket)
USB Type-C (USB 2.0 OTG)

Power supply

DC input: 6V–16V
USB Type-C: 5V/2.5A
(not supporting the QC and PD
protocols)
NP-F battery: 6.8V–8.4V

Power consumption

<8.5W (typical)

<5W (typical)

Weight

223g (7.9oz) (excluding the antennas)

Dimension

(LxWxH): 115x65x32mm (4.5″x2.5″x1.3″)

Operating frequency

5.1GHz–5.8GHz

Modulation mode

802.11n

TX power

21dBm (max.)

RX sensitivity

N/A

–90dBm

Bit rate

8Mbps–20Mbps

Latency

0.06s (test data when 1080p60 signals are transmitted in a laboratory)

Range

450ft (150m) (test data in an open, interference-free outdoor environment)

Bandwidth

20MHz

Audio format

2 audio channels for the 3G-SDI and 8 audio channels for the HDMI 1.4b

Operating temperature

–10℃ to 60℃

Storage temperature

–40℃ to 60℃

ESD protection

Contact discharge: ±6kV; air discharge: ±8kV (test data)

HDMI Input Format

HDMI Output Format

SDI Output Format

720p50/59.94/60

720p50/60

1080i50/59.94/60

1080i50/60

1080p23.98/24/25/29.97/30

1080p24/25/30

1080p50/59.94/60

1080p50/60

3840*2160 p24/25/30

1080p24/25/30

SDI Input Format

HDMI Output Format

SDI Output Format

1080p50/59.94/60 (Level A)

1080p50/59.94/60 (Level B)

1080p50/59.94/60

1080p50/59.94/60 (Level A)

1080i50/59.94/60

1080p23.98/24/25/29.97/30

1080psf23.98/24

1080p23.98/24

1080psf25/29.97/30

1080i50/59.94/60

720p50/59.94/60

Recommended Accessories

We are prepared. Select our tailored accessories for your gear.

HL-ATN11 Antenna

Cold Shoe

HL-SF02 Expansion Accessory

HL-SC02 Storage Case

Video Transmission Systems – Hollyland

Cosmo C2

Cosmo C1

Cosmo C1

HEVO, the Game Changer

No Flickering, No Black Screen

AFH

Adaptive Frequency Hopping

HEVO — Fast, Stable, and Smart

Seamless Channel Switch — You'll Never See It

HEVO with Embedded UVC

All You Need Is a USB-C Cable

HEVO for Zero-Hit Latency

A Silver Bullet For Focus Puller

1,000ft

Range

A Wide Range of Device Compatibility

HDMI & SDI IN/OUT + SDI LOOPOUT

Transmitter HDMI IN

Transmitter SDI Input Port

Transmitter SDI Loop Out Port

Transmitter DC Power Input Port

Receiver HDMI Output Port

Receiver SDI Output Port 1

Receiver SDI Output Port 2

Receiver DC Power Input Port

Transmitter HDMI IN

Transmitter SDI Input Port

Transmitter SDI Loop Out Port

Transmitter DC Power Input Port

Receiver HDMI Output Port

Receiver SDI Output Port 1

Receiver SDI Output Port 2

Receiver DC Power Input Port

Locked to the Max

Patented Ball Catch Design

Low-Battery Indicator

A Good Routine to “Save Your Work”

Vertical & Horizontal Mount Design

Built to Match & Easy to Mount

Unfailing Power

Three Power Supply Options

Cosmo C1 Applications

Packing List

COSMO C1 – 1TX to 1RX

Upgrade Your Setup

Upgrade Your Setup

Specifications

Interface

Power Supply

Power Consumption

Weight

Dimensions

Input/Output Video Format

Frequency

TX Power

RX Sensitivity

Transmission Latency

Bandwidth

Interface

Power Supply

Power Consumption

Weight

Dimensions

Input/Output Video Format

Frequency

TX Power

RX Sensitivity

Transmission Latency

Bandwidth

Syscom 421S

Syscom 421S

Synchronized A&V Transmission with Up to 4 TX

1,800ft (550m) Transmission Range and 0.07s Low Latency

SDI + HDMI Input and Output

SDI + HDMI Input and Output

RS485/RS422/LAN Control

Tally Light Support

RJ45 Pinout Support

Wide-Range Applications

Transmitter
HDMI IN

Transmitter
SDI Input Port

Transmitter
SDI Loop Out Port

Transmitter
DC Power Input Port

Receiver
HDMI Output Port

Receiver
SDI Output Port 1

Receiver
SDI Output Port 2

Receiver
DC Power Input Port

Transmitter
HDMI IN

Transmitter
SDI Input Port

Transmitter
SDI Loop Out Port

Transmitter
DC Power Input Port

Receiver
HDMI Output Port

Receiver
SDI Output Port 1

Receiver
SDI Output Port 2

Receiver
DC Power Input Port

Next-Level Wireless
Video Transmission

Numbers Matter:
0.1s & 400ft (120m)