Product Features: 1. Ultra-thin design, fashionable and comfortable. 2. Strong anti-interference capability, with a long working distance of up to 10M. 3. Intelligent energy-saving red light design for a long standby time. 4. The scroll wheel allows for easy and fast web navigation. Note: 1. Do not disassemble the product yourself. 2. Avoid dropping it. 3. Keep away from water. 2.4G Connection: When in use: 1. Insert the USB receiver located on the bottom of the mouse into your computer. 2. Turn on the power switch on the bottom of the mouse, and you can use it normally! (Please follow this order for quick pairing). Bluetooth Usage: 1. Switch the power to ON mode. 2. Turn on Bluetooth on your device and select 'BT3.0 Mouse' or 'BT5.2 Mouse' for pairing. How to Connect the Mouse for iOS: Your device must be upgraded to iOS 13 or later. Go to Settings → Accessibility → Touch → Customized Touch → Turn on your phone or tablet and search for pairing.