AIMIUZI laptop cooler is specially designed to cool down up to 15.6 inch laptops. Honeycomb style metal mesh, 1 small fan 4 big fans, flip-up anti-slip pad, 5 adjustable stand height settings, 2 USB ports, adjustable speeds, and USB powered. | The laptop cooling stand is set with a small central fan with two big fans on each side (5 total low noise fans), providing more airflow to keep laptop cool down. At the back of the laptop fan cooling pad, there is a switch wheel that turns fans on and off. | The laptop cooling fan has a metal bar for ergonomic design at the bottom, providing an elevation mechanism, and 5 adjustable stand heights adjustments add more room for laptop and desk, good for laptop heat dissipation and then lowering the temperature. | Compatible with various laptop sizes from 12 up to 15.6 inches, such as Apple MacBook Pro Air, HP, Alienware, Dell, Lenovo, ASUS, etc (USB cable included). The laptop fan can also accurately dissipate heat for your tablet, router, game console. | AIMIUZI provides each customer with a 24-month warranty . If there is any problem with the product you purchased, please feel free to contact us. Package Contents - 1 x Laptop Cooling Stand, 1 x USB cable, 1 x User manual, and lifetime friendly customer service.