Features: The powerful cooling of the nine-blade turbo airflow quickly reduces the heat of the phone. Compared with other radiators, this radiator has a speed of 5000, the wind can absorb the heat of the phone instantly. This mobile phone cooler is significantly small but is powerful enough to dissipate the heat accumulated in your phone due to continuous usage. It is equipped with a retractable spring that fits mobile phone models ranging from 4 to 6.5 inches. It latches to your phone perfectly without inflicting damage. It also comes with a rechargeable interface, giving you up to 3 hours of usage time on a single charge. It also has a -and-play function, where it immediately starts working when placed on your phone. Specification: Color: Black, Silver Material: ABS Size: 8*4.5*2.8cm Weight: 116g Function: Mobile Phone Cooler Usage Time: 2.8-3 hours Battery Information: 300mAh Package Included: 1x Mobile Phone Cooler 1x USB Charging Cable