Compact, versatile MP3 audio amplifier board for DIY speakers and small audio projects. This 2 x 3 W 5.0 lossless decoding board plays audio from USB flash drives, TF (microSD) cards and an AUX input, giving you a simple all‑in‑one solution to add reliable playback and amplification to custom speaker builds. Why this board helps you Simplifies DIY audio: combines MP3 decoding and amplification on a single board so you don't need separate modules or an external decoder. Good power for small speakers: dualchannel 3 W outputs let you drive a pair of bookshelf, desktop or portable drivers with clean, usable volume. Multiple input options: play directly from USB flash drive or TF card, or connect an external source through AUX for maximum flexibility. Lossless 5.0 decoding: builtin 5.0 lossless decoding delivers clear, stable playback of supported file formats for better sound quality in compact systems. Key features and attributes Functionality: MP3 decoding plus stereo amplification (two channels). Power output: 2 x 3 W stereo output suitable for small fullrange drivers and satellite speakers. Inputs supported: USB flash drive, TF (microSD) card, AUX (3.5 mm or linelevel input). Decoding: 5.0 lossless decoding board as specified for improved playback quality. Design: compact PCB module intended for easy integration into DIY enclosures and custom audio projects. Compatibility: works with standard USB flash drives and microSD/TF cards containing MP3 files; accepts linelevel AUX sources such as phones, MP3 players, or external decoders. Build and materials: standard printed circuit board with integrated components for decoding and amplification (designed for assembly into DIY speaker systems). Benefits customers value Quick integration: add playback and amplification to a project without sourcing multiple parts. Flexible control: choose media from removable storage or use AUX for live input. Space efficient: small board footprint saves space inside compact cabinets or portable enclosures. Cost effective: combines two functions (decoder + amp) in one affordable module. Typical applications and use cases DIY bookshelf or desktop stereo speakers: integrate this board into a small wooden or 3Dprinted enclosure to create a simple standalone MP3 speaker system with USB/TF playback and AUX input. Portable or desktop media player: build a compact, powered media player for workshops, home offices, or bedside audio using USB thumb drives or microSD cards for music storage. Prototyping and education: use the board for electronics or audio projects to demonstrate decoding and amplification in one module, or for rapid prototyping of custom audio products. Simple installation tips Mount the board securely inside your enclosure, leaving access to the USB and TF slots and AUX jack. Match speaker impedance and power handling to the 3 W per channel output to avoid overdriving drivers. Provide appropriate power supply and wiring per your project requirements (verify voltage and current compatibility before connection). What you get from this module A compact MP3 decoding and stereo amplifier board that supports USB flash drive, TF card and AUX input. Stereo 2 x 3 W amplification with builtin 5.0 lossless decoding for straightforward, quality playback in DIY audio builds. This board is designed for hobbyists, makers and smallscale audio projects that need an integrated MP3 player and amplifier with multiple input options.