Original SW-HF41 Wireless Bluetooth Digital 2.1 Channel Amplifier Board 50W+50W Stereo Output 100W Bass Output USB TF Card Decoding Play 12-26V DC Price: US$24.95 Free Shipping Buy Now For just US$24.95 , buy SW-HF41 Wireless Bluetooth Digital 2.1 Channel Amplifier Board 50W+50W Stereo Output 100W Bass Output USB TF Card Decoding Play 12-26V DC from the China wholesale webshop. Buy Now you can track your packages after an order has shipped.