Linear Damping Retractable Clip: Easy to adjust and perfectly suitable for all types cellphone from 4.5 to 7 inches.^ Rapid Cooling Down: With the dual engine, It's the same refrigeration principle as the refrigerator, not the ordinary fan coolingit can cool down your phone in 3s to avoid overheat and ensure stabilize your live streaming or gaming experience.^ Mute Engine Dissipation: Dual silent designing fan can efficiently emit wind from all sides, providing a stronger refrigeration effect, no disturbance to your gaming or your Vlog show.^ Enlarged Cooling Area: About 7 sq. Inches extreme thermal conductive cooling area to cover the CPU and battery module, protecting your phone from blackening or sudden shut-off.^ Multiple Scenes Suitable: It is a must have for mobile phone game players and vlogers who use their phone to make live streaming video^