Bluetooth Stably and fast connected:Built-in advanced sensor, no need to install any driver or software,open bluetooth on device and connect it. connection automatically every time when open your computer (compatible bluetooth 5.0/4.0 / 3.0 / 2.0 ). if you use wireless mouse on iPad/iPhone,please upgrade IOS to 13 or higher,1: open bluetooth 2:click: Setting-Accessibility-Touch-Assistive touch (open it) -Devices-find and connect Bluetooth mouse-Enter match code ‘0000’ or ‘1234’ Silent Click: Reduce noise by up to 90%, Almost no noise when your computer is running, ideal Mouse for office, home and leisure. Ergonomic and comfortable grip, The surface coating gives you a soft touch. Rechargeable with lithium battery: Mouse is supplied with a USB cable for recharging, you can use it even when recharging. Battery low will cause the cursor to be inaccurate and Bluetooth to disconnect.The two-hour charger allows use of 3-4 weeks, standby in automatically when not use.The mouse’s battery may