This is a NUNDO XDOT-079 magnetic phone cooler. It is a cooling fan designed to prevent mobile phones from overheating during extended use, such as while gaming or streaming.
It features a magnetic and back clip design for easy installation.
The cooler uses a semiconductor cooling chip to dissipate heat.
It is compatible with phones with a thickness of about 2.16cm and screen sizes from 4 to 6.7 inches.
The device has a USB-C input for power and a low-noise fan...