1.It can play a variety of music formats, support for OGG encoding real-time recording
SPI interface, the control signal lines are led out
2.A Headphone and stereo output
3.A Microphone for recording
4.A Line_in input interface
5.Power Indicator
6.3.3V and 2.8V of LDO chip AMS-1117 on board, provides up to 800mA current
7.A Single Power Supply: +5 VDC
8.12.288 MHZ crystal
9.TF card slot
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