
Hollyland Technology announces a new product in its MARS Series, the MARS 400S PRO is a 400ft wireless video and audio transmission system with a new transverse design. Besides the same 400ft range in the new MARS 400 Series, the App monitoring capability has been expanded, and an increase in the number of Apps and receivers that can be connected to the system, both SDI and HDMI.
A new industrial design offers a lower gravity center, and requires less space. Plus, utilizing the integrated cold shoe on both the transmitter and the receiver, the system provides a more secure, stable and convenient installation. Users won’t need to choose whether the only cold shoe in the default packing should go with the transmitter or the receiver.
The new 400S PRO has 400ft line of sight (LOS) wireless video and audio transmission with 0.08S lowest achievable latency, slightly lower than the 400S. Similar to other products in the MARS Series, it has eight channels to use on set, and there are channel scan and scene modes to avoid interference and to ensure a stable wireless transmission.
Hollyland has also added a silent mode for the integrated cooling fan. Some users appreciate the cooling fan in certain environments, while some others hate the noise. The new 400 Series offers the option to turn the fan completely Off, switch it to Low Speed, or Auto to let the system decide whether it needs to be cooled down, for different applications and better shooting experiences.
Another new feature Hollyland is introducing with the MARS 400S PRO is the direct live stream data feature. Now, with the PRO, the video feed straight out of RX can be used for live streaming on OBS, vMix, or VLC on a personal computer without further encryption and decryption via a video capture device.

The new 400S PRO also comes with an HD Mode under Scene Mode in the settings. The bitrate of the streaming would be raised from 8M bps on MARS 400S to 12M bps to provide a higher definition of monitoring video quality. Now users can see more rich details from the feed on the monitor or mobile devices.
Similar to the MARS 300 PRO, Hollyland has also added the 5~12V Type-C wide voltage charging option to the MARS 400S existing L-series batteries and 6~16V DC powering options. With the Type-C, users can conveniently power the devices on with their phone charger or a power bank. The system prioritizes the one with the highest voltage among these three powering options. And with these powering options, users now no longer need to worry about how they can keep their video wirelessly transmitted for a day long shoot.

The software on the PRO was optimized to accurately scan the current wireless environment and find the optimal channels for use on both RX and on the HollyView App. The App can also directly upgrade the system, instead of the traditional way of upgrading the devices. Both the channel scan and firmware upgrade are a click away.
The new 400S PRO is designed as an affordable, robust and compact wireless transmitter for filmmakers and content creators looking for an entry-level wireless video and audio transmission solution.