Compatible Speakers: The Bluetooth amplifier board are suitable for 30-200W, 4-8 passive speakers, so you can match different passive speakers as your need. (Passive speakers only, not Bluetooth speakers or active speakers). The Adapted power supply is DC 15-36V(less than 9V undervoltage protection. The higher voltage, the higher the output power)
Multifunctional Dial ButtonThe dial button is multifunctional: Press
Down-Short press: pause/play, Long
press: Switch input mode(Bluetooth/AUX/USB Flash drives);
Dial Right- Short press: Play the next music, Long
press: Volume increases;
Dial Left-Short press: Play the previous music, Long
press: Volume decrease.


