Super adaptability The combined sealed foam can be used according to the size of the laptop to obtain the best cooling effect. It is suitable for 13- 17.3 inch laptops. Choose carefully for noise-sensitive users GT500 is a well-deserved performance monster. It uses industrial-grade turbofans, The higher the speed, the better the cooling effect, and the greater the noise so its noise can reach 55 dB at the highest speed. Peoples normal conversation is about 50dBIf you are sensitive to noise, please buy carefully