EMSea 2PCS TF Card U Disk Play MP3 Decoder Player Module with Audio Amplifier Decoding Micro USB 5V Power Supply

Support MP3 format, playing power on automatically, LED indocator light when module is working. No soldering with speaker terminals for easy wiring. Supporting U disk (tested 32G), TF card (tested 16G) playback mode; Power on default TF card mode, if TF card does not exist automatically jump to U disk mode, and both devices are installed, you can set the playback mode manually, please look at the key operating instructions. Key operating instructions:The "Prev/V--" key : " short press "is switching to"the last song ,"long press" is for "volume decreasing"The "Next++" key : " short press "is switching to"the next song","long press"is for"volume increasing "The "P/P/Mode" key :"short press"is switching to "play / pause", " long press"is U disk and TF Card mode's selectionThe "Repeat" key :"short press" is switching cyclically "single / song" (no press function) Note: 1 "long press" time is about 2S.2 If you use U disk mode, some suggestions of 5V power supply, some U disk doesn't support 3.7V power supply. Super sound quality, on-board 2W mono-channel amplifier (5V power supply up to 3W) directly connected to the speaker (recommended with 4 3W speaker), 3.5mm gold-plated headphone socket can be connected to the headphone or external sound. With Micro USB power supply interface, mobile power supply or USB charger can be used through mobile phone data line, or 3.7V lithium battery can be used, USB 5V power supply.