Highly performances amplifiers board: 300W*2+600W fever grade bluetooth-compatible amplifiers board module, with strong output power, meeting the needs of music enthusiasts.Highly and low frequency adjustment: equipped with treble bass frequency adjustment function, users can freely adjust sound effect according to your preference.Double channel stereo: Supports double channel output to achieve stereoed sound effects, making music 3d and full, bringing immersived auditory enjoyment.Bluetooth-compatible connection: With build-in bluetooth-compatible function, it is convenient to wirelessly with various bluetooth-compatible devices, achieving convenient transmission.Product Name: Bluetooth-compatible Amplifiers BoardBluetooth-compatible version: Bluetooth5.2Frequency: 20Hz-20KHzadjustment: independent adjustment of Highly and low frequencyColour:BlackMaterial:plasticSpecification: C:Potentiometer externalPackage Contents:1 x Bluetooth Digital Amplifier Board ModuleOnly 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.