2*15-20W CSR bluetooth 4.0 mini amplifier use in furniture,bathroom

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3W bluetooth stereo speaker PCBA with line out

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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 

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4ohm 15W mono FM amplifier board @12V

2W electronic toys Headset Amplifier headphoen amplifier circuit board