Product selling points: 1. With a wide voltage input of DC8-24V, it can withstand high currents without generating heat or damaging wires 2. Supports multiple audio inputs such as Bluetooth, AUX, USB flash drive, and TF card, providing clear and realistic sound effects 3. 2.0 Dual channel: Stereo dual channel output 30W+30W, using high-quality filtering inductors, the sound is full and clear 4. Adopting Bluetooth 5.0 technology to ensure stable connection and low latency transmission, with stronger compatibility and more convenient use 5. Wide application range: suitable for home amplifiers, speakers, audio systems, speakers and other fields, meeting different customer needs Material: PC Color: As shown Product parameters: Power supply: DC 8-24V(DC5.5 x 2.1) Bluetooth version: 5.0 Audio input: Bluetooth/AUX/USB drive/TF card Audio channel: 2.0 Product size: 80.5 x 67 x 35mm Due to different product batches, the printed words may be different, which will not affect the use Package Contents: 1 x Amplifier board 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.