TDA7492P Bluetooth Amplifier Board 25W+25W 2.0 Channel Stereo AMP Home Audio Amplificador with 3.5mm AUX Jack For Speaker TDA7492P Bluetooth Amplifier Board 25W+25W 2.0 Channel Stereo AMP Home Audio Amplificador with 3.5mm AUX Jack For Speaker. Sale price : $6.54 Category : Consumer Electronics