1)Laptop loud speaker forcomputer 2)Mini computer stereo system 3)OEM &low price for loud ... main function:Multimedia portable speaker with mini stereo system for iPod,MP3,MP4,MP5,PC,Laptop/Notebook ... kinds of digital player devices. Features: 1) 2.0 speaker for laptop, computer,mp3,mp4,mp5 ... USB provides power, mini stereo system Specifications:1) Output Power: 3W*2(1KHZ,THD10%)2) Rated Impedance:4Ω3) ...