USB Xport X3 Portable Speaker is not only a portable stereo speaker, but also a radio / MP3 player. Built-in a SD/MMC card Slot which can read SDHC memory card for playing MP3/WMA audio files directly. It also allows to connect to all iPods, MP3, MP4, MD, CD player, notebook, PC, PDA, PSP, mobile phone and other digital products with 3.5mm stereo audio connector. Built in Lithium Ion battery - convenient to use. It gives you a cyber feel and can be a decoration for your desk.