Features:

• 5V powered.
• On board high quality MP3 decoder.
• On board dual channel/Stereo 3W differential audio amplifier for external speaker
• On board stereo 3.5mm audio jack socket for earphones.
• On board microSD socket for MP3 audio files storage.
• A MicroSD status LED.
• Interface from Arduino, UART, selectable to use soft serial.
• Jumper selectors to select different Control pins.
• Stackable side headers.
• Dimension : 69mm x 53mm