Product Features: Ultraslim design, fashionable and comfortable; Strong anti-interference capability, long working distance up to 10m; Intelligent energy-saving red light design, long standby time; Scroll wheel allows for quick and easy web navigation. Note: Do not disassemble the product yourself. Avoid dropping it. Avoid water. 2.4G Connection: When in use: Insert the USB receiver located on the bottom of the mouse into your computer. Turn on the power switch on the bottom of the mouse, and you can use it normally! (Please note this is the correct order for quick pairing). Bluetooth Usage: Turn the power to the On position, enable Bluetooth on your device, and click on Bt3.0 Mouse or Bt5.2 Mouse. How to Connect the Mouse for iOS: You need to upgrade to iOS 13 or later. Settings → Accessibility → Touch → AssistiveTouch → Turn on your phone or tablet and search for pairing.