About this item Features: rapid cooling, 28°c drop, dual heat dissipation, colorful lighting, compact and unstoppable, silent and worry-free. Directly attach the battery and CPU, cool the body, super fast heat dissipation. The powerful dual motors dissipate heat quickly. The noise-reducing air duct is designed with the mobile phone running sound as low as 30bd. The retractable buckle design can be used when the phone is 4-6.5.