(Output: DC 24V 3A. DC 24V 3A 5.5mmx2.5mm Center Positive. Bluetooth Version: 5.0. TWS operation: ) Press and hold the Button for 3 seconds, When the amplifier is in Bluetooth mode,the yellow LED flashes indicating the TWS pairing mode is on waiting another power amplifier to be connected, the solid yellow LED indicates that the 2 amplifiers are connected together successfully.
eBay