Stay Cool Anywhere & Anytime This portable USB mini fan is your perfect cooling solution for hot weather. With adjustable 3-speed wind, ultra-quiet operation, rechargeable battery and lightweight body, it brings you soft and cool wind whether you are working, sleeping or traveling. 3 Speed Adjustable Wind for Custom Comfort Features 3 wind speed levels to meet different daily needs. Low speed provides gentle wind for sleeping and relaxing; medium speed suits daily work and study; high speed delivers strong airflow to cool down the room quickly in hot summer. One-button control is super easy for everyone to operate. 500mAh Battery & USB Universal Charging Built-in 500mAh rechargeable battery supports 1-3 hours continuous working time after full charge. It supports multiple USB power methods, compatible with power bank, laptop, car USB port and wall adapter. No socket limit, freely usable for indoor and outdoor scenarios. Ultra Quiet Operation Below 36dB(A) Equipped with premium low-noise motor, the fan runs steadily below 36dB(A). The mute working state will not disturb your focus, rest or sleep, making it the best cooling companion for bedroom, office, dormitory and quiet environments. 0.34kg Ultra Light & Portable Only 0.34kg lightweight design with compact size saves your desktop space. You can place it on desk, nightstand or carry it in your backpack. Perfect for home, office, travel, business trip, camping and outdoor activities. Safe Protection & Stylish Appearance The dense safety grille effectively prevents finger accidental contact with fan blades, ensuring safe use for families with kids. Minimalist modern appearance matches various home and office decoration styles. Wide Application Ideal for home, office, bedroom, dormitory, car, travel, camping and picnic. Mini size but powerful cooling effect, keep you cool all summer. Specifications - Power Supply: USB - Battery Capacity: 500mAh - Working Time: 1-3 Hours - Noise: ≤36dB(A) - Wind Gear: 3 Gears - Net Weight: 0.34kg