Sound quality is very good and it can drive 4-16 ohm speakers. Bluetooth V4.0￡? it has sufficient power output 2*10W. Features:Sound quality is very good by using this module.Equipped with 2.1 DC power interface. Bluetooth V4.0￡? high software compatibility.With 3 buttons for adjustment￡? convenient and easy operation.Applicable speaker impedance: 4-16 ohm (8 ohm is the best).Specifications:Supply Voltage: 12V DC(<15V DC)Current: Not Less than 2A(Recommended)Power Interface: 2.1/5.5 DC InterfaceAudio Input: Bluetooth Receiver V4.0Audio Output: TerminalsApplicable Speaker Impedance: 4-16 ohmNumber of Channels: Two-channel Stereo PCB Board Size: 59 * 45mm / 2.3 * 1.77inWeight: 20g / 0.71ozPackage List:1 * Bluetooth 4.0 Digital Amplifier Board"
