Description: Installation is simple, plug and play. With ergonomic design, comfortable grip, flexible operation, can effectively reduce fatigue. Key switch life of up to one million times, the button is sensitive, long service life. Using the latest optical sensor technology, precise positioning, resolution of 800DPI. Optical induction, precise positioning, suitable for any plane. Specification: Operating environment: windows98 / ME / 2000 / XP Type: USB Optical Wired 800dpi Switch Operating Force: 60 ± 15GF Key Operating Force: 80 ± 20GF 3D button operation force: 170 ± 30GF (vertical force of the mouse button center) Switch life of 3 million times Cable length 150 ± 1% CM Working voltage: DC5 ± 5% Working current: ? 100MA Working conditions Temperature: -45oC-50oC Humidity: no more than 85% RH Package Includes: 1x USB Mouse