Slim and smart design of the cooling pad system with large, high-performance and extra quiet 2 fans built-in which absolutely helps to dissipate the heat-air away from underneath the notebook computer for cooling down the overall temperature of your system. *With special refinement construction, the cooling pad can bear any weight of notebook with blance, which without in the least of affecting usage of notebook. *Power source supported easily by the plug-and-play USB connection as a self-power mode. *Convenient, reliable and comfortable to carry. *No need for any installation. *Compatible with any notebook computers. *Tated Voltage: DC 5V. *Material: Aluminum Alloy& High Engineering ABS Plastic.