What’s Included

The TX and RX are compact, feature a bright OLED display for configuration, and they each have a 1/4″-20 mounting thread on the bottom. They both can be powered using a USB Type-C source, or an L-series NPF type battery (not included). The Mars 300 set also includes an accessory expansion plate, a shoe mount, and a USB Type-C cable.

Hollyland states having internal antennas will affect its reliability, however, I didn’t notice issues that would make it problematic. Like all wireless devices, the area you use them in will affect the performance.

Here is the Mars 300 Pro side by side with the Mars 300. As you can see it’s a little taller, but no antennas.

Pairing and Channels

The process is straightforward. Mine came already paired, so that is nice. To manually pair the TX and RX you go into the menu and select pair on both TX and RX0. After a few seconds, it’s all done.Buy the Hollyland Mars 300 PRO HDMI Wireless Video Transmitter/Receiver Set (Enhanced) Best Price Online from CELLULAR KENYA,Nairobi