Features : 1.Size: 92mm (L) X 35mm (Height)X 38mm (D) Center Hole Distance: 80mm 2.Support U disk, SD card or MMC card, MP3 file playback. (WMA and other formats are not supported) 3.Supports 6 kinds of Eq sound features, press the Eq button to click to a different audio output. 4.Power and memory function, the power to restore power before the track, the loudness of sound, FM radio frequency. 5.Support for multiple folders music player, a long press on the remote control tne or the next jump to another folder, display F01, F02 on behalf of the folder number directory. 6.Support the display the gmt function, and play MP3 or radio, press and hold the clock button can be displayed simultaneously, listening to music to see the time correct. 7.DC 3.5v-12v wide power supply 3.5v work is limited to the SD card, mmc or TF to SD card. 8.High-sensitivity FM receiver FM signal, automatic squelch. 9.Aux input function can control the aux input volume. 10.To increase the anti-power supply wiring line of protection to increase