FRIENDLY BUTTONS: The 2 big turbofans are controlled by 1 button (last one) separately and the full rgb lights are controlled by 1 button (first one), and button "+" and "-" are for fan speed adjustment. 2 use ports are set in the top of the laptop cooler pad
WIDE COMPATIBILITY: The cooler for laptop is 16" long, 11" wide, and the diagonal length is 18.3", the computer cooling pad is compatible with 14 inch to 18 inch laptops
PROTECTIVE PAD: PLEASE get the ANTI-SLIP feet out from the back of the bottom laptop cooler stand and insert 2 feet into the holes at the bottom of the front. 2 heights protect your laptop!