2.4Ghz Wireless Rechargeable Mouse Mute Ergonomic Computer Optical Mice for Home OfficeGray Condition: Item Type: 2.4Ghz Wireless Mouse Material: ABS Optional Color: Black, white, gray, gold, pink, silver, blue Model: M103 Key Life: 5 Million Times (Mute Designd) Wireless Distance: Approx. 15m/49.2ft Work: Optical Battery Capacity: Built-in 500mah Battery (Rechargeable Lipo Battery) Project Type: Ergonomic Optical Mouse Resolution: 800, 1200, 1600(Default: 1200dpi) Operation Mode: Optical Rated Voltage/Current: 3.7V/ 20mA Power Supply Type: Rechargeable (Charge Time 2h, Working Time 150h) Buttons: 2 Buttons and 1 Round (Middle Mutton) and Dpi key and One-button desktop button(Only support for windows system) System Requirements: for Windows 98 / for Me / 2000 / for XP / for Vista / for Win 7 / for Win8 / 10/ for Vista / for OS X or latest