TF Card MP3 Decoder Board With 2W Power Decoding Module 3.7-5V Mixed Mono Playback Volume Memory With Memory

TF card MP3 decoder board without TF card, support to play MP3 music files, is currently testing 16G TF card support, and a larger volume TF card is not tested yet Powered by p3.7 lithium battery or 5V USB 3 Group white box top right corner of the board into three groups touch of a button, the middle of a group to play pause button, press the up and down two sets down song key, press the volume up and down 2 Leader + - adjusted. There customer needs its own modified U disk