... ,USB Product technical parameters:1. Application: notebook computers, mobile phones, MP3, MP4, DVD, CD, U plate and the audio equipment outside ... . The stereo sound quality, super heavy bass, excellentworkmanship.2. Support MP3 format music files.3. Support SD card, U disk file ... control, random distribution the remotecontrol can be easily operating the machine.7. Support 32 M-8 GB usb or SD cardPower ...