mp3 display decoder board 12v with usb / mmc rec / player bluetooth can insert u disk sd card radio

mp3 decoder board with display with fm / usb / mmc rec / player three decoding can play lyrics 12v this product is mainly used for a variety of audio equipment - large quantities can contact the telephone to discuss ordering products constantly updated ~ ~ wiring methods: a:black=gnd;red=+12v b: yellow=lineoutput r; black=gnd ;red=lineoutput l; c: black=recording input;red=gnd; d: yellow=lineinput r; black=gnd ;red=lineinput l; please note this decode board differs from o...