Friendly Tips \n1. There is no single Backlight control button for the RGB mouse, that means if you connects the mouse with your PC, it will keep light. If you mind this, pls consider it before order. \n2.The backlit light up keyboard are Not Real mechanical. \n3.The wired keyboard backlight is 3 LED colors, could be change the single color by pressing the backlit key. \n4.If you have any problems about the backlight keyboard and mouse combo, hope you could send message to Ruige service team firstly and we will try to help you in time. 5.Rii keyboard and mouse combo product service: 12 months \nHow to control the keyboard Backlit \n1.FN+Backlight key:Turn on/off the backlight of the gaming keyboard \n2.FN+Pageup/Pagedown key:Increase/decrease LED lighting brightness of the business keyboard \n3.FN+ F1-F12:To unlock different functions for each buttons \n4.FN+ Down key:Turn off the keyboard backlit/you could also press backlight button three times \nBacklight Keyboard Specification \n.