OPOLAR Laptop Fan with Temperature Display and Cooling Pads The best cooler to ease heat dissipation in laptops, rapidly reduce both surface and internal temperature by 18 to 50 F degrees in minutes which is far better than cooling pads. Designed for notebok computer with air vents on both sides or rear, ideal for gaming laptops or systems that tax the CPU. Not recommended for Macbook or other ultrathin notebooks thinner than 0.4inch. New Model: updated LED screen dynamically displays the air temperature from your laptop vent; 13 speeds to manage the airflow and noise; Quiet operation in auto mode and max. noise is less than 70dbm. Two-way Installation: quick installation provides a easy mounting solution, just plug and play; 3M fixing glue with patented clamping arms, keeps the cooler firmly attached to laptop when moving. There are auto and manual working modes; High quality Japanese motor ensure min. 5000 working hours; One year replacement for defective unit and 30 day no hassle return and refund, no question asked.