Feature Highlights: 1. Vivid Color Spectrum Display & Versatile Audio Input – Features a 4-color luminous display, supports 5 AUX + 3P AUX audio input, and includes a USB sound card function. 2. Bluetooth 5.0 with App Control & Hands-Free Calling – Pairs wirelessly with your phone to play all supported music formats. Use the app for easy control, and take calls hands-free when connected. 3. One-Touch Callback – In Bluetooth mode, long-press to redial the last called number. 4. Folder Playback & Quick Navigation – Organize music into folders. In play mode, long-press "MODE" to select a folder. Without folders, use fast-forward or rewind to skip tracks. 5. Multi-Source Switching with Voice Prompts – Easily switch between USB, storage card, Bluetooth, FM, and AUX. Voice prompts (Chinese/English optional) notify you of mode changes and incoming call numbers. 6. Wide Audio Format Support & Digital Clock – Plays MP3, WMA, WAV, FLAC, and APE formats. Supports MP3 bitrates from 32–320 kbps and lossless APE/WAV/FLAC up to 1411 kbps. Includes an electronic clock display. 7. Full Playback Control via USB/Card – Switch sources, adjust volume, change EQ settings, play/pause, stop, repeat, mute, power off, and directly select songs. 8. Bluetooth Playback Controls – Play/pause, skip tracks, adjust volume, and mute directly from Bluetooth mode. 9. Power-Off Memory Function – Remembers the last played song and volume level after power loss. Product Details: This versatile decoder board combines a colorful spectrum display with broad audio compatibility, making it ideal for upgrading your car or home audio system. It supports multiple input sources including USB, TF card, Bluetooth 5.0, FM radio, and AUX. With hands-free calling, folder-based playback, and an intuitive interface, it delivers both convenience and high-quality sound. The unit also features a power-off memory function, so your music and settings are retained after shutdown. Easy to install and compatible with various audio setups. 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