Catch Cool Experience with this Cost-effective gaming keyboard and mouse combo1. Professional mechanical feel keyboard bring you almost same feeling compare to real mechanical keyboard. 104 standard keys,12 hot keys,strengthened space key,concave key-cap, Suspension key-cap, clear tones,19 Keys Anti-ghosting, all make you feel great and smoothly using when playing games. It well used on PS4. Note that it is not a real mechanical keyboard, but it worth it. 2. Ergonomic design for keyboard and mouse release your hand from fatigue3.Rainbow LED backlit for Computer keyboard , 7 color breath light for Computer mouse, all this design makes the keyboard and mouse looks beautiful and not dull for long time using. Also the soft backlit helps you use them in dark without hurting your eyes. This in single color control button and you could adjust brightness of the backlit of keyboard.Keyboard and mouse sets information LED backlit brightness for the gaming keyboard 1.Press *--Turn on/off backlit 2.FN+PGDN--> Reduce backlit brightness 3. FN+PDUP----> Increase backlit brightness USB ---> HID 1.1 above System Requirement .windows (PC with USB port) .Mac OS .Chrome OS Linux OS Package 1* mechanical feeling keyboard 1* gaming mouse 1* manual