Supported Sampling Rates (kHz): 8/11.025/12/16/22.05/24/32/44.1/48; 24 -bit DAC output, support for dynamic range 90dB, support 85dB.<br> The DFPlayer perfectly integrates hard decoding module, which supports common audio formats such as MP3, WAV and WMA.<br> Supports FAT16, FAT32 file system, maximum support 32G TF card, support U disk to 32G, 64M bytes NORFLASH.<br> Control modes: I/O control mode, serial mode, AD button control mode.<br> Through a simple serial port, you can play the designated music without any other tedious underlying operations.<br> <br> The DFPlayer Mini MP3 Player For is a small and low price MP3 module with an simplified output directly to the speaker.<br> The module can be used as a stand alone module with attached battery, speaker and push buttons or used in combination with an for or any other with RX/TX capabilities<br> Input Voltage: DC 3.2~5.0V<br> advertising sound waiting function, the music can be suspended. when advertising is over in the music continue to play<br> audio data sorted by folder, supports up to 100 folders, every folder can to 255 .<br> 1. Car navigation voice broadcast<br> 2. Multi-channel voice alarm or voice guidance equipment operation<br> 3. Electric sightseeing bus safety with voice announcement<br> 4. Electrical and mechanical equipment failure <br> 5. Fire alarm voice prompts<br> 6. Automatic broadcast equipment, regular broadcast<br> Material:PCB<br> colour:black<br> <br> Package Contents:<br> 5 * Mp3 Player Board<br> <br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.