Brushless Motor - Super Power: The combination of a three-phase brushless motor and a 5000mAh battery significantly improves the wind speed, power, and endurance. The maximum wind speed can reach 9m/s. The highest rotation speed of the handheld fan is three times that of a regular personal fan, reaching up to 15000 RPM. It can cool for 3-15 hours on a single charge
Scroll switch - Customizable wind speed: This small fan adopts a scroll switch design, and the wind speed can be adjusted steplessly. The portable fan can customize speeds from 1 to 100, meeting your various wind power needs in any scene