... SD/TF/CD/DVD 3.portable,nice design 4.best quality & competitive price Portable Gift Mini Speaker With USB/SD Card Reader: 1 ... beyond size,good quality with competitive price 2.Plug and play, identify USB automatically, USB Powered and signal directly3.Full-digital ... laptop, desktop, MP3, MP4, tape recorders, learning machines, radios and other audio device 6.Simple & fashion design, easy to assemble ...