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Hollyland Mars 4K Wireless Video Transmitter

BH #HOHLMARS4KTX • MFR #HL-MARS 4K TX
52 reviews
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Hollyland Mars 4K Wireless Video Transmitter
Key Features
  • Professional Video Transmitter
  • Transmit up to UHD 4K30 Video up to 450'
  • SDI & HDMI Inputs , 5 GHz Frequency Band
  • Smart Channel Scanning, Touchscreen LCD
Add up to 4K30 wireless video transmission to your gimbal, mirrorless, or DSLR camera rig using the lightweight Mars 4K Wireless Video Transmitter from Hollyland. The transmitter provides HDMI and SDI inputs and features extremely low 66 ms latency with line-of-sight transmission up to 450' to an optional receiver.
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Hollyland Mars 4K Overview

From Manufacturer

Add up to 4K30 wireless video transmission to your gimbal, mirrorless, or DSLR camera rig using the lightweight Mars 4K Wireless Video Transmitter from Hollyland. The transmitter provides HDMI and SDI inputs and features extremely low 66 ms latency with line-of-sight transmission up to 450' to an optional receiver.

Using the Hollyview app for iOS or Android, you can monitor your video transmission in real time via a Wi-Fi connection to your tablet or smartphone. The unit also features a built-in frequency scanner to select the clearest frequency for your transmission. The Mars 4K transmitter is compact in size, features a bright touchscreen LCD display for configuration, and is built with a corrosion-resistant housing. The unit can be powered using a USB-C source, the included locking DC power adapter, or by using a separately available L-series type battery using an optional battery plate.

Key Features
UHD 4K Video Transmission
The Mars 4K supports UHD 4K30 video transmission for the discerning videographer looking for high-resolution production capability. The Mars 4K also supports FHD and HD formats at varying frame rates such as 24, 30, and 60p.
Long Range and Low Latency
The Mars 4K transmits a long line-of-sight range of 450' and an ultralow latency of 66 ms. Its upgraded dual-core codec chip is capable of a 12 Mb/s data transfer rate.
HDMI and SDI Interfaces
The Mars 4K transmitter supports HDMI and SDI inputs for expanded connectivity and compatibility. The SDI ports provide expanded frame rate flexibility for broadcast and production frame rate standards and compatibility through production and postproduction.
Form Factor
The Mars 4K features corrosion and wear resistance for durability. The design form factor optimizes operational functionality for fast configurations with wiggle-free, bullet-styled antennas attached.
Smart Channel Scanning
Channel assignment options allow for interference-free transmission. A stable connection is possible automatically upon startup. An intelligent channel scan helps determine which ones are occupied and selectable.
Color Touchscreen LCD
The Mars 4K features a color touch LCD with a user-friendly UI design that enables quick configuration and status checks. Its gamepad-styled button dramatically improves the operational setup experience.
Multiple Power Options
The Mars 4K supports various DC power options: 6 to 16 VDC coax input, L-series/NP-F batteries, and USB-C chargers.
App Monitoring
The Hollyview app for Android and iOS allows you to monitor your transmission on a smartphone or tablet. It allows you to transmit to apps and receivers in the following configurations:
  • Transmitter to 1 receiver + 2 apps
  • Transmitter to 4 apps
  • Mars M1 wireless transceiver monitor to 1 receiver and 2 apps
UPC: 191460002908

Hollyland Mars 4K Specs

Key Specs
Embedded Audio
HDMI/SDI
Wireless
Wi-Fi 4 (802.11n)
Latency
66 ms
Video Format
HDMI
UHD 4K: 30
1080p: 60/30/24
SDI
1080p: 60/59.94/30/29.97/24/23.98
Battery
Interchangeable Mount (No Plate Included)
Power Consumption
8.5 W
Inputs/Outputs
Antenna I/O
2x RP-SMA Male
Video I/O
1x HDMI Input
1x BNC (3G-SDI) Input
Embedded Audio
HDMI/SDI
Audio I/O
No
Power I/O
1x Barrel Input
1x USB-C Input
Encryption
No
Wireless
Wireless
Wi-Fi 4 (802.11n)
Wireless Range
450' / 137.2 m (Line-of-Sight)
Channel Bandwidth
20 MHz
Frequency Range
US: 5.1 to 5.8 GHz
Latency
66 ms
RF Power
21 dBm
Wi-Fi
Wi-Fi 4 (802.11n)
Bluetooth
No
Mobile App Compatible
Yes: Android & iOS
Cellular Support
No
Format Support
Video Format
HDMI
UHD 4K: 30
1080p: 60/30/24
SDI
1080p: 60/59.94/30/29.97/24/23.98
Timecode Support
Yes
Power
Input Power
6 to 16 VDC
Battery
Interchangeable Mount (No Plate Included)
Power Consumption
8.5 W
Mounting
Tripod/Accessory Mounting
Bottom
1x 1/4"-20 Female
General
Status Display
Yes
Environmental Resistance
No
Operating Conditions
14 to 140°F / -10 to 60°C
Storage Conditions
-40 to 140°F / -40 to 60°C
Dimensions
4.5 x 2.6 x 1.3" / 115 x 65 x 32 mm
Weight
7.87 oz / 223.00 g, Excluding Antenna
Packaging Info
Package Weight
1.56 lb
Box Dimensions (LxWxH)
8.1 x 5.7 x 3.1"

Hollyland Mars 4K Reviews

The greatest thing since peanu

By Andrew
Rated 5 out of 5
Date: 2026-05-18

We are a young church and we needed to have wireless videos because of the number of people and this item work perfectly.

Works Ok But Too Much Latency For My Needs

By Nathan
Rated 3 out of 5
Date: 2025-12-04

It's Nice And Shiny And Everything. And Seems To Work OK In General. But The Latency Is Just Too Much For IMAG And It Was Unusable For Us. I Suspected This To Be The Case Before I Bought But Was Hoping It Would Be OK, But It Just Wasn't It Probably Works Ok If You Aren't Doing Live Video With It Returned To B&H

See any errors on this page?

Red Compatible? I'm using just the TRX and ...

Red Compatible? I'm using just the TRX and looping HDMI out from a SmallHD to the HDMI input of the TRX, but says no vid. Help?
Asked by: Aaron
The mars 4 Works with the pyro 5 transceiver? How is the connection between them if it is possible?
Answered by: Pablo
Date published: 2026-03-23

Can this TX be used to watch the shot being ...

Can this TX be used to watch the shot being filmed on only a phone/phones via an app? Or does it need a receiver at all times?
Asked by: deepti
Yes, the Hollyland Mars 4K Wireless Video Transmitter can send signals to the Hollyland app without the use of a receiver (RX).
Answered by: Jonathan S
Date published: 2024-11-12

How many transmitters can you use with the app?

How many transmitters can you use with the app?
Asked by: Anthony
A transmitter can connect up to four mobile phones for APP monitoring when it does not connect with any receiver. When you connect the Transmitter with one receiver, you can also connect the transmitter to 2 mobile phones for the APP monitoring.
Answered by: Hollyland Product Expert
Date published: 2023-05-06

Can I use a Hollyland Mars 4K Transmitter with a ...

Can I use a Hollyland Mars 4K Transmitter with a Mars 400 HDMI receiver? Setup would be - Red camera uses the SDI port on transmitter and HDMI port on the receiver.
Asked by: plassin
The Hollyland Mars 4K Wireless Video Transmitter is not compatible with the Mars 400.
Answered by: Chris H
Date published: 2022-11-18

Can this transmitter be used with kit, I need two ...

Can this transmitter be used with kit, I need two transmitters and one receiver?
Asked by: Harvinder
The Hollyland Mars 4K Wireless Video Transmitter is a 1 to 1 system, meaning one transmitter sends to one receiver. You can connect 4 additional phones/tablets from a non real-time view of what is being transmitted.
Answered by: Jonathan S
Date published: 2024-03-11

Can this be powered using a USB-C to DC Barrel ...

Can this be powered using a USB-C to DC Barrel Power Cable coming from a Smallrig mini V-Mount Battery?
Asked by: Alejandro
Yes, a Smallrig battery with USB-C support like the VB series could power the Hollyland Mars 4K Wireless Video Transmitter.
Answered by: Chris H
Date published: 2023-05-24

Sdi 3g

Sdi 3g
Asked by: Ehrin
The Hollyland Mars 4K Wireless Video Transmitter has 3G-SDI I/O.
Answered by: Jonathan S
Date published: 2024-03-28

Would this be compatible with any receiver? Like ...

Would this be compatible with any receiver? Like a feelworld receiver+monitor combo?
Asked by: A
The Hollyland Mars 4K Wireless Video Transmitter would work with the following Receiver. It would not work with other Brands. The Mars 4k transmitter can also output to the Hollyland Mars M1 5.5" Wireless Transceiver Monitor. Hollyland Mars 4K Wireless Video Receiver BH #HOHLMARS4KRX Hollyland Mars M1 5.5" Wireless Transceiver Monitor BH #HOMARSM1
Answered by: Chris H
Date published: 2023-08-16
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