3DPI switch: with high performance optical chip, up to 1600dpi (800, 1200, 1600) precise tracking to meet different needs. With Bluetooth 3.0/5.2 technology, built-in durable 500mAh lithium polymer rechargeable battery with high cycle life, charging time is about 1.5-2.5 hours for long-lasting use, auto shutdown function will help you save energy because your Bluetooth mouse will shut down when your computer is turned off or the receiver is disconnected. If you don't use the mouse for eight minutes, it will go into sleep mode and you can press any button to make it weaker. Suitable for desktop/ipad/laptop/Mac Macbook Pro/Air(2017/2018/2019/2020/2021) iMac and other devices. Contoured shape, ultra-thin and lightweight design, smooth surface ensures maximum comfort and support for your hand even during long hours of work, rubber scroll wheel ensures your hand won't slide while scrolling, this Bluetooth mouse can meet your daily office needs and personal preferences. Provide you with excellent after-sales service: any quality problems within one month can be directly returned or replaced. It is recommended to use the USB port of your computer to charge the mouse or use a 5V 1A charger, no more than 5V 1A.