Gump's grocery TF Card U Disk MP3 Format Decoder Board Amplifier Decoding Audio Player Module Z

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 selection The "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. Product specifications Power range: 3.7~5.5V Dimension: 45mm*36mm packing included? 1x MP3 Decoder Module