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3.7~5V 3W Stereo WAV + MP3 Audio Decoder Board - Black + Green
Function: 1. Remote Receiving Screen: need to buy other remote controller to operate (you can controll it by the button); 2. USB: USB interface£¬ plug into U disk£¬ it will automatically play MP3/WAV song of U disk; 3. SD: SD/MMC Interface£¬ plug into SD Disk/MMC Disk£¬ it will automatically play MP3/WAV song of U disk (if you use TF Disk£¬ need to add set); 4.“PREV/VOL-”: "long press -" will turn down voice; "short press-" in USB/SD will back to former music; 5.“PLAY/PAUSE”£º"short press-" in USB/SD will play/pause; 6.“NEXT/VOL+”£º"long press +"raise voice; "short press" in USB/SD will back to former music; 7. Power dispaly: When the power is on£¬ LED light display.