Working Voltage: 3.7V Lithium Battery 600MA or 5V USB Power Supply
with 2W Mixed mono
With Power supply ,it can play Automaticly
With LED indicator
Supports MP3 format playback
Supports USB audio mode
Supports 3 types FM radio chip : RDA5807, BK1080 and RTC6207E.
Does not support infrared remote control.
Does not support USB device mode
1x MP3 Decoder Board 2W Amplifier Module for Arduino
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.