1.3DPI SWITCH:Using high-performance optical chips, up to 1600 dpi(800, 1200, 1600) accurately tracking,to meet different needs. 2.Adopt bluetooth 3.0/5.2 technogy,built-in durable 500mAh Lithium polymer rechargeable battery,high cycle life, The charging time is about 1.5-2.5 hours, lasting use time, the Auto Switch Off function will help you save energy as your bluetooth mouse will switch off when your PC is turned off or the receiver is disconnected. If you do not use the mouse for eight minutes, it will go to sleeping mode, you can press the any button to weak it up. energy saving and extremely w power consumption. 3.It is compatible with Mac OS Windows /Win8/10/and is suitable for desktop/ipad/notebook/Mac Macbook Pro/Air/iMac and other devices. 4.Contoured shape, Ultra Thin and lightweight design, smooth surface ensure maximum comfort and support for your hand even after ng working hours, The rubber scroll wheel makes sure that your hand will not slip when scrolling,This bluetooth mouse can meet your demand of daily office working and personal preference.