High End TPA3116 Bluetooth Amplifier Board

Mini Hi-Fi PAM8610 Audio Stereo Amplifier board/2X10W Dual Channel D Class 12V

2 X 150Watt @4ohm Class-D Audio Amplifier Board

Digital Optical Coaxial RCA Toslink Signal to Analog Audio 

 High output 5W stereo recording plush doll OEM

 USB motion sensor sound module

4ohm 15W mono FM amplifier board @12V

2W electronic toys Headset Amplifier headphoen amplifier circuit board

Bone Conductor Transducer earphones bone conduction 8ohm 3W

8ohm 10W Elektrodynamischer Exciter SL-E10

 electrodynamic sound exciters 4ohm 10W

 150W bluetooth 4.0 HIFI amplifier support APTX