Feature:TPA7498E HIFI chip solution: Stereo dual-channel output ensures continuous serial high-power operation, THD ≤0.1%. Wide voltage input DC: 12-24V;Treble and Bass Control: If you are tired of the inherent high and low bass, why not try the high and low control knobs! This will make you feel like you are in a movie theater. ;Bluetooth and AUX function: Bluetooth 5.0 version, longer transmission distance. In an open environment, the transmission distance can reach 49 feet. If your playback device doesn't have Bluetooth, you can also input audio signals via a 3.5mm headphone plug. ;Safety protection: This amplifier board has overheating protection, reverse protection, circuit protection, overvoltage and undervoltage protection;Colour:blackMaterial:plasticPackage includes:

1 x Bluetooth Amplifier Board1 x Screwdriver