User Friendly Design: Four multifunctional buttons (VOL, AUTO, VOL+, MODE) for convenient operation; built with PC material for durability. Wide Compatibility: Supports multiple lossless music formats including MP3, WMA, WAV, FLAC, and APE for audio playback. Flexible Storage Control: Compatible with , , MMA cards and USB flash drives; features power off memory function and remote control up to 10 meters. Versatile Features: Decoder Board Audio Module includes recording capability, FM radio (87.5MHz108.0MHz), digital color screen display, and external audio input via LINE IN. Practical use scenarios In the kitchen or living room, play background music from USB flash drive or memory cards, using the fourbutton control for easy operation. In a workshop or classroom, listen to FM radio or connect external audio via LINE IN for demonstrations; recording capability supports capturing audio as needed. During events or presentations, control playback and settings from up to 10 meters with the remote control.