Mice & Trackballs Technical Parameters:2.4G Wirele Transmiion Technology,10M wirele receiving distance.Rechargeable design, built-in 500 mAh lithium battery Third gear DPI adjustment design quiet and elegant office wirele mouse High resolution: Max 1600 DPI high resolution for fluid motion Fashion ergonomic design: ergonomic design, comfortable grip, stylish appearance, easy to carrySpecification:1:Color: Black,White,Pink,Blue,Green.2:Material: ABS3:Key life: 5 million times(Mute switch)4:Wirele distance: 10m5:Work: Photoelectricity6:Battery capacity:500mAh(Chargeable lithium battery)7:Charging cable length: 24cm8:Project Type: Ergonomics Optical Mouse9: Resolution: 800,1200,1600. (1200dpi Default)10: Operation Mode:Opto-electronic11: Rated voltage / current: 3.7V / 18mA12: Power Type:Rechargeable(Charging time 2h,Working time 150h)13: Type:2.4Ghz Wirele mouse14:Buttons: 2 Buttons and 1 Round (Middle Mutton) and Dpi key15: System requirements: Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 / 10/Vista Mac OS or latest.Installation and use steps:1. Remove the wirele 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!