100W + 100W high-power Bluetooth digital amplifier. TPA3221 chip with lossless audio components. External potentiometer for convenient volume control. Power switch included. High-quality materials for superior audio performance. Upgraded version with multiple audio input options. Robust wiring design and enhanced build quality. Product Name: Bluetooth Digital Audio Amplifier Board Product Model: XY-T1002P Power Supply: DC 12–30V, 3A or higher Bluetooth Version: 5.2 Audio Inputs: Bluetooth, AUX, USB flash drive, USB sound card Bluetooth Audio Codecs: AAC, SBC Lossless Audio Formats Supported: WAV, FLAC, APE, MP3 Output Power (Stereo): • 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 or printed text 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 × Stereo Audio Amplifier Board Note: Color representation may vary slightly due to lighting conditions and display settings. Allowable measurement tolerance: ±1–3 cm.