Silent Click Wired Mouse OP720S, Dust-resistant Wheel, Black

OverviewThe A4tech optical wheel Mouse with hyper-fast scrolling for increased productivity. A nearly frictionless scroll wheel lets you fly through long documents and Web pages with a single flick. Experience smoother cursor control on virtually any surface. Contoured design give you more support and control. 5 M Clicks Button Lifetime Extreme quality offer over 5 million clicks guaranteed. 1200 DPI smooth and accurate tracking anywhere, even on furry textiles. Throw away your mouse pad Dust-resistant Wheel Dust-resistant design prolong wheel life-span. 8 in One 8 gestures to perform selectable hotkey commands. 4-way Wheel Smart horizontal & vertical scrolling. SPECIFICATIONS:- Model：OP-720 / OP-720S Type: Wired Ergonomic Design: Symmetric Sensor : Optical Resolution: 1200 DPI Buttons No.: 3 Port: USB or PS2 Cable Length: 150 cm Net Weight:86 g (w/ cable) System Requirements: Windows XP / Vista / 7 / 8 / 8.1 / 10