This MP3 decoder module provides lossless decoding and includes a built-in power amplifier to enhance audio output. It can play decoded audio files smoothly, serving as a dedicated MP3 decoder board for your project. It supports TF card and USB drive (U disk) as audio sources, enabling convenient playback from memory cards and flash drives. By performing lossless decoding of MP3 files, it delivers fidelity music with improved sound quality. You can decode and play audio directly from TF cards and U disks, providing flexible music playback options. Applications and use scenarios: - DIY speaker or small stereo system upgrade: add high-fidelity MP3 playback with amplified output. - Standalone MP3 player or embedded audio project: use TF card or USB drive as source for ready-to-use music. - Educational electronics projects: learn about decoding and amplification in a compact module.