This semiconductor mobile phone cooler uses a high-efficiency cooling chip and a high-speed, silent fan, offering three adjustable cooling modes, with the lowest setting achieving sub-zero cooling to quickly dissipate heat from the phone. It features an Led digital display screen that shows the current temperature and cooling level in real time, and a three-color Rgb lighting effect that can be turned on and off with a single button. The dual-airflow design prevents hot air from blowing directly on your hands, improving the grip experience. A built-in temperature sensor automatically triggers protection when the temperature reaches 75degree(s)C, ensuring device safety. It is compatible with Qc/Pd fast charging protocols and supports various power inputs from 20W to 120W. Suitable for high-load scenarios such as gaming and live video streaming. The formation of condensation droplets during the cooling process is a normal physical phenomenon.