Specification wireless laptop speaker: 1.LED display 2.Remote control 3.FM radio,built-in Lin-ion 4.USB cable/remote control Features:This wireless laptop speakers can link to MP3, MP4, Notebook, CD, DVD, Mobile phone,IPOD,iPhone&iPhone 3G&4 can be charged when playing by plug in straightly.1)Support SD/USB/SMM card, Auto play function2)with Aux-in connection, support: MP3/MP4, computer, music ...