The best choice for laptop Full range stereo sustem +Virtual 5.1 surrounding stereo enabled Specifications: Driver units: 32mm antimagnetic driver x2 Power output: 2W x2 Driver impedance: 4 Ohm Frequency response: 125-10KHz Audio input: 3.5mm stereo mini Jack Voltage: 5V DC Power supply: USB port 500mA Dimentions: 136x65x47mm Features: 2 chanenl stereo sound USB power and audio input Powerful amplifier for active operation Mount on laptop or stand on desk Stylish desigh and customizable logo Plug and play on Windows(Windows98 included) My contact information: ---------------------------------- Simon Lau Dingtai Industry Co.,Ltd D&T Internation Limited Sales Centre:Floor 6 North Tower,International Commercial Building ,Jiabin Road, Luohu,Shenzhen 518016 China Factory:Building A, Huafeng Industrial Park, Gushu Xiaweiyuan, Baoan Shenzhen 518102 China Tel: +86 755-82186663 ext.804 Fax: +86 755-82186063 E-Mail: Website: