Description: Product Name: Air Cooler Color: Black And Silver Product size: 7.55X3.65X1.97CM Manufacturing method: Semi mechanical Material: Abs-aluminum ceramic alloy Power supply: 5 volts Charging interface: micro Instructions for use: To fix the cooling bracket of the semiconductor mobile phone on the back of the mobile phone, first hook one side to the side of the mobile phone, then pull the telescopic sleeve to connect the other side of the mobile phone to complete the tightening. Connect the power cord to the TYPE-C interface and USB power adapter to start, and then the switch next to TYPE-C controls the fan light switch. The loading head needs to be prepared by itself. Applicable scene: Android, IOS, Smartphone Package Contents: 1 x product 1 x Manual 1 x box packaging Note: The colors deviation might differ due to different monitor settings. Manual measuring, please allow 1 ~ 3mm error,thank you.