1.Linear Damping Retractable Clip: Easy to adjust and perfectly suitable for all types cellphone from 4.5 to 7 inches. 2.Rapid Cooling Down: With this dual engine, It's this same refrigeration principle as this refrigerator, not this ordinary fan coolingit can cool down your phone in 3s to avoid overheat and ensure stabilize your live streaming or gaming experience. 3.Mute Engine Dissipation: Dual silent designeding fan can efficiently emit wind from all sides, providing a stronger refrigeration effect, no disturbance to your gaming or your Vlog show. 4.Enlarged Cooling Areaprotecting your phone from blackening or sudden shut-off. 5.Multiple Scenes Suitable: It is a must have for mobile phone game players and vlogers who use their phone to make live streaming videosIf you have any questions, please contact us, we provide after-sales service that makes customers satisfied. Mobile phone cooler, mobile phone cooler with dual semiconductor cooling chips, suitable for all types of mobile phones from 4.5 to 7 inches, suitable for Tiktok live broadcast, outdoor Vlog, mobile game, mobile phone coolers with dual semiconductor cooling chips, suitable for 4.5 to 7 Inches of all types of mobile phones Package Included: 1 x radiator