Features: 1. Audio Decoding Formats Supported By Vs1003: Mp3, Mp3+Vwma, 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 (Dac); 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 Ldo Chip Ams-1117, Providing A Maximum Current Of 800ma;3. Single Power Supply: +5VDC, Capacitor Filter4. 12.288Mhz Crystal Oscillator;Material: FR-4 fiberglass boardcolour: As shownPackage Contents:1 x Audio Decoding Module