The company specializes in design and production of USB HOST MP3 module, the master chip and the Health and plant sales were not a third party, so definitely in terms of quality and price advantage: 1) USB + SD 2) MP3/WMA 3) Infrared remote control function (can choose to play songs 1-299) 4) key (play / pause, next / vol +, pre/vol-) 5) Size: 36 * 88MM Instructions: U disk and SD card while connected, the first U disk, plug in the power 5V, automatic USB or SD card pull put the songs; the board assembly of simple clients do not need development (PCBA Division I offers to customers ) qq 1720502465