Features:OOTDTY   2.1 Channel TDA7498 Bluetooth-compatible Power Amplifier Board 160Wx2+220W.High quality S220H power amplifier board. Bluetooth-compatible 5.1 version, the transmission efficiency is higher, the transmission distance is farther.High Definition Low Distortion Hifi Sound Quality.Protection: overvoltage, undervoltage, clipping, short circuit, overheating and other protection.The maximum of left and right channels is 160W / 4 Ω - 36VDC;80W / 8 Ω - 36VDC;Subwoofer Max Output power:220W / 3 Ω - 36VDC;160W / 4 Ω - 36VDC.Specifications: Material:Plastic+MetalModel: XY-S220HPower Supply:DC 12-38V/10ABluetooth-compatible Version:5.1Channel: 2.1 Channel Input: Bluetooth-Compatible + AUX + U Disk + USB Sound CardFrequency Range:20Hz-20KHzPackage Includes: 1x TDA7498 Power Amplifier BoardNote: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.