1、VERTICAL SHAPE: Vertical mouse, comfortable to hold. Plug and play, compatible with for OS X. Suitable for office, games, etc 2、RECHARGEABLE MOUSE: Rechargeable mouse, no need to replace the battery, built in rechargeable battery (500MAh), can be used with confidence 3、2.4GHZ WIRELESS CONNECTION: Vertical healthy mouse 2.4GHz wireless connection. Using optical technology to control accurately 4、ERGONOMIC DESIGN: Optical resolution: 800dpi/ 1600dpi/ 2400dpi. Ergonomic design, comfortable grip, preventing wrist pain. 5、SCOPE of APPLICATION: Support for Win 98, for Win Me, for Win 2000, for Win XP, for Win Vista, for Win 7, for Win 8, for Win 10, for OS X system Item Type: Wireless Mouse Material: ABS Wireless Distance: Approx. 10m/11yd Rated Voltage/current: 3.7V / 100mA Number of Keys: 6 Keys (4 buttons, 1 scroll wheel, 1 dpi) Optical Resolution: 800dpi/ 1600dpi/ 2400dpi Color: Black Work: Optoelectronics Button Life: 8 Million Times Built-in Lithium Battery: 500mah (rechargeable battery) Charging Cable Length: Approx. 80cm/31.5in  (manual measurement allows error) System Requirements: For Win 98, for Win Me, for Win 2000, for Win XP, for Win Vista, for Win 7, for Win 8, for Win 10, for OS X 1 x Wireless Mouse 1 x USB Receiver 1 x USB Charging Cable