UrChoiceLtd® ESTONE E-2370 2.4GHz Wireless Mice1200DPI Optical USB Gaming Mouse Cordless Ergonomic PC Mini Mouse For Computer Hand Orientation: Both Hands Maximum dpi: 1200 dpi Distance: 106 x 64 x 34 mm Windows Vista: Works with Windows Vista Version: RF Wireless Parts: 1 Year Warranty Labor: 1 Year Warranty