useSpecification:1Brand/Model: M802Color: Black,White, Gray, Gold, Rose gold, Silver.3Material: ABS4Key life: 5 million times 5Wireless distance: 10m6Work: Photoelectricity 7Battery capacity:500mAhChargeable lithium battery8Charging cable length: 25cm9Project Type: Ergonomics Optical Mouse10: Resolution: 800,1200,1600.(1200dpi Default)11: Operation Mode:Opto-electronic 12: Rated voltage / current: 3.7V / 18mA13: Power Type:RechargeableCharging time 2hWorking time 150h14: Type:2.4Ghz Wireless mouse15Buttons: 2 Buttons and 1 Round (Middle Mutton) and Dpi key16: System requirements: Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 / 10/Vista Mac OS or latest.17: Product weight:67g18: Item size: 11.2 *5.8 * 2.5cm19: Packing weight: 102g20: Package Size:12.2 * 8.3* 4.3cmPackage List:1 * 2.4 G Wireless Mouse 1 * USB Receiver1 * USB Charging Cable(25cm)Installation and use steps1. Remove the wireless mouse from the box.2. Remove the mini receiver installed in the bottom of the mouse, insert the computer's USB interface,Free code, plug and play.3.This product is a built-in lithium battery. You only need to set the bottom switch to the ON position.A charging cable is included in the package. When the cursor movement delay occurs, please insert the charging cable into the front end interface of the mouse to charge. Please try not to use it while charging Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.