Please Pay Attention (1) If the mouse responds slowly or works improperly, this might be caused by a low battery and will be solved by charging it. (2) The mouse will enter into sleep mode without operation 10 minutes, please click the left/right button to awake it. (3) Please charge the mouse for 2 hours before the first time to use it. The blue light beside the scroll wheel will be on while charging and then goes off when the mouse is fully charged. Stable Bluetooth/2.4G Wireless Connection The gaming mouse supports dual-mode connection, and meet your need on different devices. Bluetooth mode: support Windows 8/10, Mac OS, iPad, or iPhone Series (NOTE: NOTE: It is required to update your system to iPad OS 13/ iOS 13 or Above and Turn on the Assistive Touch on the iPad/ iPhone: Setting - Accessibility - Assistive Touch for an iPad usage.) 2.4G Wireless Mode: just plug the USB receiver to your PC, no additional driver or software is needed. RGB 7-Color Breathing Backlit D