Product Name : BJM-212 3D Optical Wheel Mouse Brand Name : B & J Model No. : BJM-212 Place Of Origin : Shenzhen City , China Main Features And Specifications : Description Of Main Components : Sensor : Optical Buttons : 2Buttons + 1 wheel Micro Switch -- 1 million Cycle Life Encoder : Opto-Mechanical... 1. Elegant appearanceReliable precision optical technologyScrolling and zooming by wheel button 2. Symmetric and arched shape designFits big hand users 3. Button can be programmed as you desire to 800DPI PS/2 or USB or U+P COMBO ports are available 4. 3Buttons programmable Zoom directly from your mouse without scroll bars 5. Compatible with Win95/98/200/ME/NT/XP/LINUS If you are interested in this product please feel free to cotnact us for more detailed informations. Look Forward To Hearing From You Soon Kind Regards Pelles B & J INDUSTRIAL (SHENZHEN) LIMITED URL : Contact : Pelles Woo TEL : +86-755-61123685/3680/3682/3681 FAX : +86-755-61123683 Cell Phone : +86-755-26209705 E-Mail : Pelles813# , Pelles0813# Pelles813# ,Pelles.Woo# MSN ID : Pelles813# , Pelles0813# Yahoo ID : Pelleswoo Skype Me ID : Pelles813 AIM ID : Pelles0813 ICQ : 305463681 Factory Add. : 4F, Building 11, New Tongfuyu Industrial Park, Longhua Village, Longhua Town, 518109, Shenzhen City, P.R.CHINA