100W+100W high-power Bluetooth digital amplifier TPA3221 chip for high-fidelity o performance External potentiometer for convenient volume control Power switch included High-quality components for superior o output Upgraded design with multiple o input options Robust wiring and enhanced build quality Product Name: Bluetooth Digital o Amplifier Board Product Model: XY-T1002P Power Supply: DC 12–30V / 3A or higher Bluetooth Version: 5.2 o Inputs: Bluetooth, AUX, USB flash drive, USB sound card Bluetooth o Decoding: AAC, SBC Lossless o Decoding: WAV, FLAC, APE, MP3 Output Power (Left + Right Channels): 10W+10W @ 8Ω / 12VDC 20W+20W @ 4Ω / 12VDC 35W+35W @ 8Ω / 24VDC 70W+70W @ 4Ω / 24VDC 60W+60W @ 8Ω / 30VDC 100W+100W @ 4Ω / 30VDC Slight variations in appearance and labeling may occur between production batches; these do not affect functionality. Configuration Options: C: Housing-integrated type B: External potentiometer type A: Integrated potentiometer type Color: As shown Material: PCB Package Includes: 1 × o Stereo Amplifier Board Note: Color representation may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.