30000mAh Rechargeable Battery: Powered by 30000mAh rechargeable battery, it can be fully charged in 8-10 hours with 5V/2A input via the included type-C cord, and provide 18-300 hours duration(Fan Mode Only: 18h-60h; Light Mode Only: 99h-300h). Built-in 5V/2A type-C input port and a 5V/2A USB output port for charging the fan conveniently, or use it to power other devices, a good helper for camping trip, power outage, hurricane, etc High-Speed Airflow: With the 0-100% fan speed adjustment, this powerful cooling fan can reach 14.7ft./s and blow air up to 18ft away with 120CFM max air vilume on the highest speed. The lowest speed simulates natural wind, providing a refreshing feel indoors, ideal air circulation fan for small spaces like bedroom, kitchens, lofts. Only Fan Mode can last 18h-60h under fan fully charged depending on the speed chosen Super Bright LED Light: Composed of 32 LED beads, Cold and Warm Illumination mode, the 480 lumen tent fan has 6 kinds of brightness settings.