2.4G+BT5.1 Dual Modes Wireless Transmission Technology,Energy-saving, built-in storage, no need for code, smart connection.15M wireless receiving distance,Superior anti-interference .Third gear adjustment design,800-1200-1600dpi.Colorful luminous design, long press the button for 2 seconds to turn off the light.Silent design,quiet and elegant office wireless mouse.Type:2.4Ghz Rechargeable wireless mouseModel: /M103FG Dual Modes: 5 (Silent design)Wireless distance: 15mWork: PhotoelectricityBattery capacity:500mAh(Chargeable lithium battery)Charging cable length: 25cmResolution: 800,1200,1600.(1200dpi Default)Operation Mode:-electronicRated voltage / current: 3.7V / 18mAPower Type:Rechargeable(Charging time 2h,Working time 150h)System requirements: Windows 98 / / 2000 / XP / Vista / Win 7 / Win8 / 10/Vista OS or latest.Colour:blackMaterial:ABSSize:11.3 x 5.7 x 2.6cmPackage Contents:1 x Mouse1 x USB Receiver1 x USB CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.