GPD2846A TF Card MP3 Decoder Board 2W Amplifier Module for Arduino GM Power Supply Module Features: Working Voltage: 3.7V Lithium Battery 600MA or 5V USB Power Supply 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 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 Package Included: 1pcs * GPD2846A TF Card MP3 Decoder Board 2W Amplifier Module Before purchase: 1. All the goods are in stock and we will dispatch immediately if we receive the order. 2.Please read the item description, if you have any question, do not hesitate to contact us. Shipment: 1.1-2 days to ship(except for the pro-order item) After purchase: 1.If you are satisfied,please give us 5 stars praise. 2.Please contact us before you are going to give us bad review. We are helpful and will solve the problems. if you receive a defect item,please contact us at once with item picture or video #GPD2846A #TF #Card #MP3 #Decoder #Board #2W #Amplifier #Module #for #Arduino #GM #Power #Supply #Module