Product Overview: Model: P71 Digital Display Ice Three-Level Magnetic Radiator Function: Easy to operate Automatically adjust the temperature by 12 degrees in AI mode for optimal cooling.<br><br>Installation: Simply attach it to the back of your mobile device, ensuring a tight fit with the aluminum surface. No need to install a case on the device, it can run more efficiently. Note: A charger and cable that supports at least 5V-2A is required for optimal performance. Color: black Material: ABS+Aluminum Alloy+Magnet<br><br>Package Contents: 1 x P71 Digital Display Phone Cooler<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.