Brand Xuanguang Model X-W019 Quantity 1 Color Black Material ABS Connection Method Wired Bluetooth Version No Connection Type USB Cable Length 150 cm Tracking Method Optical Resolution 800 / 1200 / 1600 / 2400 dpi Power Supply USB OS System Windows me / Windows 2000 / Windows XP / Vista / Win 7 /Win 8 USB Other 4 Key image processing: 4000/sresponse time: 2MS maximum acceleration: 8G button work life:8000000 times; Has high sensitivity more accurate positioning more freely to control in your hand; Built-in metal makes you feel well when you moving the mouse; Ergonomic design accroding to right hand makes you feel comfortable; The free circulation speed regulation system 800 / 1200 / 1600 / 2400 (default is 800DPI) according to different needs to select suitable entertainment speed each period of adjustment have corresponding color instructions; With tail can change color logo previous to light technology Packing List 1 x Mouse 1 x Chinese & English user manual