No More Overheating phone cooler is designed for mobile gamers, live streamers, bloggers, and others who use devices for extended periods. Say goodbye to overheating problems and enjoy optimal device performance. Advanced Cooling Technology -Cell Phone Cooler using the latest semiconductor refrigeration radiator technology and adopting the composite structure design could providing efficient cooling in few seconds. Universal Compatibility and Easy InstallationPhone cooling fan is designed to be compatible with all type smartphone from 4.5 to 7 inches. Just simply clamp the cooling device to the back of phone, then enjoy your gaming time without worrying phone getting overheat. Whisper-Quiet OperationOperating at 30 db or less, the Phone Cooler ensures a serene environment for gaming, streaming, and conversations. Enjoy uninterrupted focus and immersive entertainment without fan noise distractions. Lightweight and CompactMade with lightweight materials, the phone cooler is easy to carry around. Compact appearance design will not block your fingers when playing game.