4000mAh Power: Equipped with a high-capacity 4000mAh rechargeable battery, this personal fan delivers up to 10 hours of continuous cooling on a single charge. Perfect for long outdoor events, shifts, or overnight camping trips, it reduces the need for frequent recharging and keeps reliable airflow available whenever you need it. Strong Airflow, Compact Size: Despite its small, design, the motor spins up to 10,000 RPM to generate powerful airflow that larger fans. It quickly circulates air to cool your face, neck, or waist area, helping you stay refreshed in stuffy cars, crowded public spaces, and hot workshops without taking up valuable space. Cooling Comfort Anywhere: This handheld portable fan features an advanced cooling plate that makes direct contact with your skin, delivering an instant chill that feels like a mini portable ac for car or outdoor use Flexible Dual Modes: Choose between two intuitive airflow modes to match any situation. The first mode offers 1-199 stepless speed adjustment for ultra-precise cooling control, while the second mode provides 5 preset levels for quick, one-touch selection Smart LED Display & Convenient Design: The built-in LED screen clearly shows real-time battery level and active wind speed, so you always know when to recharge and which setting you are using. This smart display prevents guesswork and makes operation easier, especially in low light environments like tents or dim garages and basements.