• It's an add on board that needs an arduino or some other micro controller to play thru
  • Support file format:MP3/WAV
  • Support Micro SD card, Micro SDHC Card
  • Support sampling frequency (kHz):8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48
  • UART TTL serial control playback mode, baud rate is 9600bps. 30 class adjustable volume

Power supply can be 3.2 ~ 5.2VDC 
Support sampling frequency (kHz):8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48 
Support file format:MP3/WAV 
Support Micro SD card, Micro SDHC Card 
30 class adjustable volume 
UART TTL serial control playback mode, baud rate is 9600bps