Q100H Qualcomm APTX Bluetooth audio amplifier 2.1 channel 50W * 2+100W amplifier TPA3116 subwoofer

$19.10

HT21MAX upgraded 2.1-channel Bluetooth amplifier board 200W * 2+400W high and low frequency adjustment TPA3223

$20.62

XY-S350H 220Wx2+350W Amplifier Board TPA3251D2 2.1 Dual Channel Support Sinlink App BT5.1+AUX+USB Sound Card+USB Flash Disk

$22.59

AS21HPA High power Bluetooth digital amplifier 2.1 channel heavy bass 300W*2+600W imported TPA3255

$28.96

XY-AS21HPA Bluetooth High-Power Digital Amplifier Board 2.1 Channel Subwoofer 300W*2+600W Dual TPA3255 Amplificador

$32.15