MP3 Decoder Board incl 2W versterker

Working Voltage: 3.7V Lithium Battery 600MA or 5V USB Power Supply   
Chip:GPD2846A   
Chip Footprint:SOP16   
PCB Size:34.23MM*22.33MM*1MM   
with 2W Mixed mono   
With Power supply ,it can play Automaticly   
With LED indicator   
Supports MP3 format playback   
Does not support infrared remote control.   
Does not support USB device mode

https://www.petervis.com/Electronics_Kits/gpd2856a/gpd2856a-mp3-decoder-board.html