DescriptionClamp the semiconductor mobile phone refrigeration bracket on the back of the mobile phone, hook one side of the mobile phone first, and pull the telescopic clip arm to hook the other side of the mobile phone to complete clamping.Features- Color: Tarnish- Material: ABS, Aluminum Alloy, Ceramic - Size: About 7.70X4.50X1.90cm/3.03X1.77X0.75in - Operating Voltage: 5V-2A. - Super silent, does not affect the game sound voice. - New ice porcelain refrigeration technology, refrigeration faster. - The retractable clasp design can work with the phone from 4 to 6.5 inches. - Easy to install and quick release. - The cooling plates closely adhere to the hot running part of the mobile phone CPU,absorbing heat and dissipating heat at the same time.