ITEM NAME:Bluetooth 4.0 Audio Receiver Amplifier Board Tda7492p 50w + 50w, 2.1 Interface Description: *Output power: add pre-5532 output foot.Chip: tda7492p,the Sound Quality is very good, big power. 1 Piece tda7492p 4.0 audio receiver amplifier board. People always bought together with. Output power: add pre-5532 output foot powered 25V, powered 25V,6̉ۡ impedance output 2x50w, 8̉ۡ impedance output 2x40w dual-channel.