QUICK COOLING: uses dual engines with a refrigerator-like cooling principle, not ordinary fan cooling. Cools a phone within 3 seconds, helps prevent overheating, and keeps live broadcasts or games stable. SILENT ENGINE HEAT DISSIPATION: dual-silent design fans radiate air from all directions for stronger cooling, while remaining quiet and not interrupting games or Vlog programs. INCREASED HEAT DISSIPATION AREA: heat conduction and dissipation area of about 43 cm2 covers the CPU and battery modules, helping protect the phone from black screens or sudden shutdown. STRONG COMPATIBILITY: suitable for all phones from 4 to 6.5 inches. A recommended accessory for avid mobile game players and mobile phone broadcasters, and also suitable for Uber drivers. Use scenarios: - During extended gaming sessions on phones 4 to 6.5 inches, the device stays cooler, reducing throttling and maintaining performance. - While live streaming or vlogging on the go, stable temperatures help ensure smooth recording and playback. - For rideshare drivers using GPS and streaming apps on long trips, maintains device performance and prevents unexpected shutdowns.