Review on 📡 Official Dealer: Hollyland Mars 400S Pro 1080p HDMI & SDI 5G Wireless Video & Audio Transmission System - Transmitter+Receiver (400ft Range, 0.06s Latency) by Brandon Page

Used this for live broadcasts - and used every bit of the 400ft range described. Not a single frame was left out during the hour-long broadcast. I was expecting some as we have moved a lot. Devices are synced/linked together so they are truly ready to use. Very happy with my investment. Very low latency, but since our audio was sent from the camera via HDMI, the audio was still in sync with the video. The included batteries seem to last a long time - we had it running for 2 hours and it still worked - so I don't know how long they will last. The only thing I don't like is that the battery level is shown in volts rather than the full/dead battery indicator, so I'm not sure how the voltage on the screen will change once it stops working. The blocks have a metal body, not a plastic body. Finally, I'm not sure if it was a bug or not, but there was an "extra" antenna in the kit. Definitely recommend this product.