Special Tips * Operating instructions:1.2.4G connection: Turn on the power switch at the bottom of the mouse and plug the receiver into the USB port of the computer.2. Bluetooth connection: First turn on the computer Bluetooth search function, turn on the power switch at the bottom of the mouse to search the Bluetooth location for pairing3. When Apple's mobile phone ipad connects to Bluetooth, it needs to open the auxiliary function system to update ios13 or aboveNote: Some computers can not find the matching name, press and hold the left and right keys + scroll key to search againSpecification: Outer box size: 39.5*32*27cm a box of 100PCS with a gross weight of 10KG