1Large Area Refrigeration: Large area refrigeration is able to greatly reduce the heat generated by running the game, solving the problem of slow down caused by heat. 2Little Noise: Adopts aluminum alloy fin air duct and silent hydraulic motor, double noise reduction methods, that the fan has little noise during running, allowing you to hear clear gaming sound. 3Dual Protection: Equipped with empty load low temperature protection and fan high temperature protection to prevent overload and abnormal operation of the device. 4Close Fitting: Able to stay close to your phone, that the cooling performance can be better that other types, the cooling effect can be clearly felt, improving your using experience. 5Focus on Games: Fan speed is up to 6000 RPM, and the noise value is lower than 28dB, able to provide a high performance while having little bother during use, so you can focus on the game.