How can I switch the frequency ? Hollyland Tech November 30, 2020 03:20 Updated Long-press the UP or DOWN button on TX or RX to switch to another frequency channel and enter OK to confirm it Related articles Could I Choose SDI IN HDMI Out or HDMI IN SDI Out? How to get the best wireless performance with MARS 400S PRO? Issue: Unable to find the device Wi-Fi How to pair a new RX with the current system ? How to do the App Connection？ Comments 0 comments Article is closed for comments.