Feature:1. VERTICAL SHAPE: Vertical mouse, comfortable to hold. Plug and play, compatible with for OS X. Suitable for office, games, etc2. RECHARGEABLE MOUSE: Rechargeable mouse, no need to replace the battery, built in rechargeable battery (500MAh), can be used with confidence3. 2.4GHZ WIRELESS CONNECTION: Vertical healthy mouse 2.4GHz wireless connection. Using optical technology to control accurately4. 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 systemSpecification:Item Type: Wireless MouseMaterial: ABSWireless Distance: Approx. 10m/11ydRated Voltage/current: 3.7V / 100mANumber of Keys: 6 Keys (4 buttons, 1 scroll wheel, 1 dpi)Optical Resolution: 800dpi/ 1600dpi/ 2400dpiColor: BlackWork: OptoelectronicsButton Life: 8 Million TimesBuilt-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.Package List:1 x Wireless Mouse1 x USB Receiver1 x USB Charging CableNote:Manual Measurement Allows ErrorNote: This Mouse Does Not Need Batteries Now. There is a Battery Inside the Mouse! You Can Use the Usb Cable to Charge! No Need to Worry About Buying Batteries Again!Built in Battery Delivery