Highly performances amplifiers board: 300W*2+600W fever grade bluetooth-compatible amplifiers board module, with strong output power, meeting the needs of music enthusiasts.<br> Highly and low frequency adjustment: equipped with treble bass frequency adjustment function, users can freely adjust sound effect according to your preference.<br> Double channel stereo: Supports double channel output to achieve stereoed sound effects, making music 3d and full, bringing immersived auditory enjoyment.<br> Bluetooth-compatible connection: With build-in bluetooth-compatible function, it is convenient to wirelessly with bluetooth-compatible devices, achieving convenient transmission.<br> Product Name: Bluetooth-compatible Amplifiers Board<br> Bluetooth-compatible version: Bluetooth5.2<br> Frequency: 20Hz-20KHz<br> adjustment: adjustment of Highly and low frequency<br> Colour:Black<br> Material:plastic<br> Specification: C:Potentiometer external<br> Package Contents:<br> 1 x Bluetooth Digital Amplifier Board Module<br> Only the above package content, other products are not included.<br> 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.