The Bluetooth amplifier board uses an amplifier chip and has high-fidelity stereo sound quality; it supports Bluetooth, U disk, AUX audio input with FM function; the amplifier is equipped with Bluetooth 5.0 high-speed transmission, supports APE, FLACMP3, WAV, WMA and other music compatible withmats, and can decode the mainstream music compatible withmats on the market. As long as the mobile phone can , it can be played on this Bluetooth, which does not affect the distance and not freeze. The effective transmission distance of Bluetooth is 20 meters without obstruction. The input power of the amplifier is DC12-24V, with dual-channel output, output impedance of 4-8Q, and maximum power of 160W*2. The onboard volume adjustment potentiometer can freely adjust the volume. Suitable compatible with dual-channel 160W audio, using TDA7498E power amplifier chip efficient D-class operation, excellent sound quality and percompatible withmance, mainly used in home theaters and active speakers. Product name: Bluetooth digital power amplifier board Bluetooth chip: Bluetooth 5.0 Chip type: Digital chip Chip model: TDA7498E Power supply voltage: DC12-24V Output impedance: 4-8Ω Number of channels:Dual channel Output power:160W*2 Appearance size:100x98x35mm Product weight: 190g Colour:Black Material:ABS Package Contents: 1 * audio amplifier 1 * remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.