Features:
VS1053 is a VLSI company VS10xx series of the most powerful chip, can play a variety of music formats, also supports OGG real-time encoding recording
SPI interface, the control signal line leads
1 headphones and audio output interface
1 a microphone for recording
1-line_in input interface
the power indicator
on-board 3.3V and 1.8V LDO chip AMS-1117, the largest provider of 800mA,
single power supply: +5 VDC, capacitor filter
12.288 Mhz crystal