Are you fed up with the usage of num pad and mouse. So this product will open new horizens. Because Track Ball Gadget targeting those users, who use num pad and mouse for huge calculations. So just plug this gadget with your computer as well as with laptops, because most of laptops does’t have any num pad and track balls, especialy Mini Laptops of Hp and Dell Mini Laptops. Its also called for hybird device. Its compatible with almost all operating system like Windows Xp, Windows Vista, Windows 7. Its a complete solution for netbooks frequent use for mathematical use also. And for accounting purpose also. This gadget is available in just $60. For more quries about Track Ball Product, you can contact us at info@click4information.net