SKU : O04003 Specification: Chip: TDA7492P Supply Voltage: DC 8-25V Power Interface: 2.1 DC Socket and with power switch Audio Input: Bluetooth Receiver V4.0 or 3.5 or AUX Audio input Audio Output: Terminal blocks Applicable Speaker Impedance: 4 / 6 / 8 / 16ohm (8ohm is preferred) Number of Channels: Two-channel Stereo Board color: Red PCB Board Size: 82.5 x 50.6 x 17.9mm(LxWxH) Feature: HiFi quality and Bluetooth 4.0, super compatibility, easy connection. DIP switches for different amplifier gain settings. Build-in dual channel stereo TDA7492P amplifier chip with optimized design and circuit layout.