... positioning precision; High-end mouse,shooting 1500 images per second. 1> Optical Tracking.2> With ergonomic design, wireless mouse lets you get more ... it more comfortable and easy for you to hold your mouse. Dimension125x68x37mmNet Weight55 GDPI switcher800-2000 DPI-Adjustable speedNumber of button6D ... ,2000,XP,2003,X64,IBMReceiverUSB 2.0 2.4G Wireless optical mouse DPI switch