Audio amplifier board with Bluetooth 4.0 input

Modelo: HW-337.
Audio amplifier board with Bluetooth 4.0 input.
Decoding of supported formats: MP3, WMA, WAV, FLAC.
Power supply: DC 8 V - 26 V (DC 12 V - 24 V recommended).
Output power: 2 x 50 W.
Speaker impedance: 4-8 ohms.
Control Method: buttons.
Reception distance: 15 meters approx.
Dimensions: 82 x 50 x 20mm approx.
Weight: 37 g.