Feature Highlights: 1. Supports 4-color RGB spectrum display, 5 AUX + 3P AUX audio input, and USB sound card functionality. 2. Bluetooth 5.0 compatibility with app control and hands-free calling (pairs wirelessly to play all supported music formats from your phone and allows call answering). 3. Phone callback feature: Long-press to redial the last number in Bluetooth mode. 4. Folder selection playback: Organize music into folders, long-press "MODE" during playback to choose folders, or skip tracks if no folders exist. 5. Seamless switching between USB, storage card, Bluetooth, FM, and AUX modes, with voice prompts (Chinese/English optional) and caller ID display. 6. Supports MP3, WMA, WAV, FLAC, and APE formats (MP3: 32–320 kbps; lossless APE/WAV/FLAC up to 1411 kbps) and includes an electronic clock. 7. Full playback control via USB/card: skip tracks, adjust volume, EQ settings, play/pause, stop, repeat, mute, and direct song selection. 8. Bluetooth control: skip tracks, volume adjustment, play/pause, and mute. 9. Power-off memory: Remembers previous playback position and volume level after restart. Product Details: This versatile decoder board features a vibrant RGB display and broad format support for high-quality audio playback. It enables easy switching between multiple input sources, including USB, TF card, Bluetooth, FM radio, and AUX. With hands-free calling, folder-based music management, and power-off memory, it offers a user-friendly experience for custom audio setups. Ideal for car audio upgrades, home stereo systems, or DIY multimedia projects. Specifications: - Material: ABS - Available Colors: Silver, Black - Bluetooth Version: 5.0 - Remote Control Battery: CR2025 - Weight: Approx. 63g - Panel Dimensions (L×H×D): Approx. 92×35×29 mm / 3.62×1.38×1.14 inch - Hole Cut-out Size: Approx. 75×27×29 mm / 2.95×1.06×1.14 inch - Screw Hole Spacing: Approx. 80 mm / 3.15 inch Package Includes: 1 × Power Cord 1 × 3-pin Connecting Wire 1 × Remote Control 1 × Decoder Board