3-Phase Brushless High-Power Motor + 5000mAh Battery: Boosts wind speed, power, and endurance dramatically. Max wind speed hits 9m/s, max RPM reaches 15000 (twice that of regular personal fans), and a single charge delivers 3-15 hours of cooling. Scroll Switch for 1-100 Stepless Speed Adjustment: Equipped with a scroll switch, this fan lets you customize wind speed between 1-100 gears to fit any scenario. Noise levels range from 53dB (Level 1) to 80dB (max speed). Stylish Metal-Textured Body: Crafted with advanced oxidation technology, the fan features a sleek metallic finish. Its smooth cylindrical design ensures a comfortable, cool grip. HD Digital Display & Power Reminder: The high-definition screen shows real-time wind speed and remaining battery, so you can charge in advance when power is lowno more unexpected shutdowns during trips. 18W Fast Charging & Versatile Power Options: Supports 18W fast charging (fully charged in 1.5-2 hours) for up to 15 hours of use. The included 3.28ft