Mode: Wireless, USB, TF, FM, AUX in modes Short press to play previous song, long press to reduce sound volume
On music playing mode, short press to play/pause music playing on FM mode, long press to search FM channels automatically On Wireless modes, switch both units to wireless mode double click play/pause button to start TWS, and long press play/pause button on one of the unit to disconnect TWS Short press to play next song, long press to increase sound volume
