Features: 1. 100% brand new and high quality. 2. TDA7492P digital amplifier chip, designed to optimize the circuit layout, the sound quality is very good, big power. 3. Powered by DC8-25V, wide supply voltage. 4. Stable performance, long service life. 5. DIP switches can be adjusted directly after the amp gain more respect and better promote greater damping horn. Specification: Condition: 100% Brand New Material: PCB Power: 2.1 Interface 8-25V DC Power Supply Audio Input: Stereo Input Various Versions of the Bluetooth Connection, Using Csr8630 Bluetooth Chip, Bluetooth V4.0, High Software Compatibility Color: Red Output Impedance: 8 Ohms Best(4,6,8,16 Ohm Impedance Can Drive Speakers) Output Power: Powered 25V Dual-Channel Weight: Approx. 135g / 4.8oz Digital Amplifier Board Size: 82.1 * 50.5 * 18.8mm / 3.2 * 2.0 * 0.7in Acrylic Shell Size: 103.4 * 69.5 * 26.5mm / 4.1 * 2.7 * 1.0in Package List: 1 * TDA7492P Wireless Digital Bluetooth Audio Receiver Amplifier Board 1 * Acrylic Shell Parts and components Note: Lighting, display and other factors may cause COLOR SHADING, please comprehensive pictures and text descriptions to determine 1、100% brand new and high quality. 2、TDA7492P digital amplifier chip, designed to optimize the circuit layout, the sound quality is very good, big power. 3、Powered by DC8-25V, wide supply voltage. 4、Stable performance, long service life. 5、DIP switches can be adjusted directly after the amp gain more respect and better promote greater damping horn.