Super large matched heat dissipation surface, semiconductor refrigerant material, strong and fast cooling. 85g light, small and portable, no burden feeling when installed on mobile phone, no blocking. Type-C interface, plug and play, convenient and fast. Tripod socket included, can be matched with selfie stick, live stick. Extendable buckle, soft silicone material does not damage the phone, supports 4.7 -7 inch cell phones, compatible with 99% of cell phones on the market.