1. 100W+100W audiophile grade high power Bluetooth digital amplifier. 2. TPA3221 chip lossless components - better sound quality Potentiometer external - more convenient to increase the power switch - more security. 3. Audiophile grade materials, excellent performance. 4. Upgraded version Multiple audio inputs. 5. design Stronger wiring Higher face value. Product Name:Bluetooth digital audio amplifier board Product Model:XY-T1002P Power supply: DC12-30V/3A or more Bluetooth Version:5.2 Audio Input:Bluetooth/AUX/U disk/USB sound card Bluetooth audio decoding:AAC SBCU disc Lossless Decoding:WAV FLAC APE MP3 Left and right channel output power: 10W+10W@ 8Ω/12VDC 20W+20W@4Ω/12VDC 35W+35W@8Ω/24VDC 70W+70W@4Ω/24VDC 60W+60W@8Ω/30VDC 100W+100W @4Ω/30VDC Due to different batches, there may be differences in product appearance and printed text, which not affect use. Specifications:B:Potentiometer external type Colour:As Shown Material:PCB Package Contents: 1 * Audio Stereo Equalizer 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.