Adopt bluetooth 3.0/5.2 technology, built-in 500mAH A product lithium battery, configuration charging line, like a mobile phone, easy to charge, more scientific, charge and discharge of more than 500 times, the mouse no longer need to buy a battery. size: 113mm x 58mm x23mm weight : 3.2 oz package: Bluetooth mouse x1, USB Charging Cable x1 How to use Bluetooth wireless mouse:Apple Mac MacBook/pro/Air 2012/2013/2014/2015/2016/2017/2018/2019: first, open the mouse switch, open the computer system preferences, open the bluetooth, when the computer Bluetooth display is searching for nearby Bluetooth devices, hold down the mouse button (at the bottom of the mouse small black button) and keep 3 to 8 seconds, and then your computer display the search bluetooth mouse, bluetooth device click on the link, and then the connection is successful Win7/8/10/XP series notebook computer usage instructions: First, open the mouse switch, open the computer settings, open the device Bluetooth function, open add Bluetooth, open Bluetooth, when the computer Bluetooth display is searching for nearby Bluetooth devices, hold down the mouse button (at the bottom of the mouse small black button) and keep 3 to 8 seconds, and then your computer display the search bluetooth mouse, bluetooth device click on the link, and then the connection is successful