1.Bluetooth4.0 stable and fast connection: Built-in advanced sensor, no need to install any driver or software, just turn on bluetooth on the device and connect. It will automatically connect every time you turn on the computer (compatible with Bluetooth 4.0/3.0/2.0). ? ? If you are using a wireless mouse on your iPad/iPhone, please upgrade IOS to version 13 or later, 1: Turn on Bluetooth 2 click: Settings - Accessibility - Touch - Assistive Touch (on) - Devices - Find and connect "Bluetooth Mouse" -Enter the match code "0000" or "1234"2. Silent Click: Reduce up to 90% noise, the computer is running with almost no noise, it is an ideal mouse for office, home and leisure. Ergonomic and comfortable to hold, the surface coating gives you a soft touch.3. Rechargeable Lithium Battery: The ANEWISH mouse comes with a USB charging cable, which can be used even while charging. Low battery can result in inaccurate cursors and Bluetooth disconnects. The two-hour charger lasts 3-4 weeks, with automatic standby when not in use. The mouse battery may be exhausted due to long-term transportation, please charge the mouse after receiving it4. Super Compatibility: Compatible with Windows, iPad/iPhone (iOS 13.1.2 and later), Mac OS X (not applicable to Mac OS 10.13.3 and Mojave system), compatible with Android and Linux.Macbook, Tablet , Lenovo, Asus, HP, Surface, etc. 24 hours after sale, if you don't know how to connect your iPad, please refer to the product description5. Portable and easy to use: Lightweight mouse, easy to control, easy to store in a laptop bag, perfect for carrying around. 3 adjustable DPI levels (800-1200-1600 DPI) give you free control over mouse speed. And the shape allows right/left handed use. Its matte black makes it even more beautiful "All Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution."