Support VS1003 audio decoding format: MP3, MP3 + V, WMA, WAV, MIDI, SP - MIDI<br> separate analog and digital and IO power supply; The serial data and control interface (SPI)<br> 1 headphones and audio output interface, with the internal PLL clock frequency multiplier; High quality stereo digital to analog converter (); 16 the adjustable chip digital converter (ADC); High quality stereo earplugs drives (30 o)<br> 1 mic for recording, supports audio coding format: ADPCM (mono)<br> 1 line_in input interface, supports two input mode; Support MP3 and WAV flow<br> a separate analog and digital and IO power supply, power light<br> the onboard 3.3 V and 2.5 V "chip - 1117, the largest current 800 mA<br> single power supply: + 5 , capacitor filter<br> 12.288 Mhz crystal vibration<br> colour:green<br> Material:PCB<br> size:4*4cm<br> Package Contents:<br> 1 x VS1053 MP3 Module<br> Only the above package content, other products are not included.<br> Note: Light reflection 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.