Feature: 1. WAV: 1411kbps lossless sound quality with wide applicability. 2. MP3: Adjustable quality levels from 32kbps to 320kbps, the mostcommon audio format, suitable for sound quality seekers. 3. APE/FLAC: HighCompression rate lossless sound quality from 600kbps to 1200kbps. 4. BT AAC: Efficient coding, fine quality BT sound with wide applicability. 5. Made of fine quality material with fine workmanship, practical in use and long lifespan. 6. The four corners magnetic suction design can adsorb on metal surfaces, making it more convenient to use. 7. Multi functional knob, infinite tuning, smooth touching, one click turn on/off. 8. This amplifier board can be controlled through the Sinilink app or remote control. Specification: It's designed to decode and plays audio files from a USB drive in a lossless format, ensuring the highest quality sound for your listening pleasure. Easy to install and use, it's a perfect addition to your audio system. Features: WAV: 1411kbps lossless sound quality with wide applicability. MP3: Adjustable quality levels from 32kbps to 320kbps, the mostcommon audio format, suitable for sound quality seekers. APE/FLAC: HighCompression rate lossless sound quality from 600kbps to 1200kbps. BT AAC: Efficient coding, fine quality BT sound with wide applicability. Made of fine quality material with fine workmanship, practical in use and long lifespan. The four corners magnetic suction design can adsorb on metal surfaces, making it more convenient to use. Multi functional knob, infinite tuning, smooth touching, one click turn on/off. This amplifier board can be controlled through the Sinilink app or remote control. Specifications: Type: with remote controller, without remote controller (optional) Audio input: BT+AUX+U Disk Input voltage: 5V/1-3A BT decode: AAC SBC U disk decode: WAV FLAC APE MP3 Remote controller battery: 1 * CR2025, 3V, 150mAh Item size: 50 * 50 * 23mm / 2.0 * 2.0 * 0.9in Item weight: 125g / 4.4ounce Package size: With remote controller: 118 * 84 * 42mm / 1.6 * 3.3 * 1.7in Without remote controller: 94 * 78 * 42mm / 3.7 * 3.1 * 1.7in Package weight: With remote controller: 250g / 8.8ounce Without remote controller: 199g / 7.0ounce Packing List: 1 * Decoding Board (Not Installed) 1 * USB Cable 1 * Screwdriver 1 * Remote Controller (optional) Package List: 1 * Decoding Board (Not Installed) 1 * USB Cable 1 * Screwdriver 1 * Remote Controller (optional)