Product Details： Features: 1. Audio Decoding Formats Supported By Vs1003: Mp3, Mp3+, Wav, Midi, Sp-midi; 2. Separate Analog, Digital And Io Power Supplies; Serial Data And Control Interface (spi); 3. 1 Headphone And Audio Output Interface With Internal Phase-locked Loop Clock Multiplier; High-quality Stereo Digital-to-analog Converter (); 16-bit Adjustable On-chip Analog-to-digital Converter (adc); High-quality Stereo Earplug Driver (30 Ohms); 4. 1 Microphone For Recording, Supporting Recording Encoding Format: Imaadpcm (mono); 5. 1 Line_in Input Interface, Supports Two Input Methods; Supports Mp3 And Wav Streams; Description: 1. Separate Analog, Digital And Io Power Supplies With Power Indicator Lights; 2. Onboard 33v And 2.5v Chip -1117, Providing A Maximum Current Of 800ma; 3. Single Power Supply: +5vdc, Capacitor Filter 4. 12.288mhz Crystal Oscillator; Material: Fr-4 Fiberglass Board Colour: As Shown Package Contents: 1 X Audio Decoding Module Only The Above Package Content, Other Products Are Not Included. Note: