Hollyland Mars 300 PRO HDMI Wireless Video Transmitter/Receiver Set

The Hollyland Mars 300 PRO HDMI Wireless Video Transmitter/Receiver Set allows you to add up to 1080p60 wireless video transmission to your gimbal, mirrorless, or DSLR camera rig. This enhanced model features two external antennas on the transmitter, including one spare. The transmitter provides a single HDMI input plus an HDMI loop-out for viewing on an onboard monitor and the receiver provides two HDMI outputs. The transmitter features line-of-sight transmission up to 120m to the receiver and up to 91m to a Wi-Fi app.
Using the Hollyview app for iOS or Android, you can monitor your video transmission in real-time via a Wi-Fi connection. The transmitter can transmit to up to one receiver and two apps, or to a total of three apps, simultaneously. The transmitter and receiver are compact in size, feature a bright OLED display for configuration, and each feature a 1/4"-20 mounting thread. Each can be powered using a USB Type-C source, or they can be powered using a separately available L-series type battery using their battery plates. The Mars 300 set also includes an accessory expansion plate, a shoe mount, and a USB Type-C cable.

Compact Design with External Antenna
Featuring an external antenna design the Hollyland Mars 300 PRO can be stored neatly in your kit. Front mounting holes and side heat dissipation holes contribute to the sleek and thoughtful design.

Broader Coverage with Less Latency
The 120m transmission distance supports a larger working range for your wireless video fit-out. The 0.1s ultra-low latency ensures instant transmission that you can rely on to increase collaboration on set with the director, gaffer or client.

One-for-All Thumbwheel Switch
The function menu is operated by a thumbwheel switch, letting you select the desired function or channel with a simple turn. This thumbwheel switch is used to configure all settings, greatly reducing the number of buttons on the Mars 300 PRO.

Unstoppable Power Supply
The Mars 300 PRO can be charged via a USB-C power bank, DC adapter or run of NP-F style batteries. The multiple powering options give you more power assurance and you can swap to a different power supply at any time.


Dual HDMI Ports and Loop out Support
To allow you to connect more devices, both the receiver and transmitter provide two HDMI ports, which support simultaneous input and output. One of the HDMI ports on the transmitters is a loop out, which can output video to a small monitor on the camera to allow the camera operator to clearly see the shots.


OLED Display | All Key Info at A Glance
The high-definition OLED display shows all necessary info including the signal strength, remaining battery power and channel. Whether the Hollyland Mars 300 PRO is installed vertically or horizontally, the screen will face you so you can see what is displayed without lowering the device.


Monitor With an App on Your Phone
You can monitor the shots with an app installed on your phone or tablet. The app provides additional functions including 3D LUTs, focus peaking, zebra, and zooming. By turning phones into monitors the Hollyland Mars 300 PRO makes it easy for multiple additional team members to collaborate at zero extra cost.


Quick & Easy Firmware Upgrade via App
Once you have connected to the Mars 300 PRO using the mobile app, you can start the firmware upgrade by tapping a single button.