JISULIFE Portable Neck Fan, 100 Adjustable Speeds, 40000 RPM Cooling, Mini Personal Wearable Fan, 4500mAh USB Rechargeable, 16H Runtime, LED Display - Gifts for Outdoor, Travel, Camping, Summer (Blue)

100-Speed Turbo Power with High-Efficiency Motor: Neck fan features a 9-blade turbo fan and brushless motor, delivering 8.5m/s airflow at 10cm distance and up to 40,000 RPM. With 100 adjustable speeds from a gentle breeze to hurricane-force wind, you get rapid cooling. The roller dial allows smooth wind speed adjustment, balancing strong power with portability. All integrated into a wearable design for efficient heat dissipation | Customizable Cooling & Long-Lasting Battery: The 4500mAh battery lasts 3-16 hours depending on speed. The sealed charging port keeps out dust and moisture, and the portable fan fully charges in 34 hours. Track remaining battery life in real time on the LED display, and easily recharge via USB adapter. With long battery life and fast charging, you can enjoy uninterrupted comfort even on hot days | Smart LED - Instant Adjustment: Personal fan features a smart LED display showing real-time speed level (1100) and battery percentage. Short press to turn on/off; double-tap to check battery level. Rotate the roller up and down to instantly adjust airflowno fumbling! The display automatically returns to speed mode after 5 seconds. Ideal for festival, commute, shopping, and more | 4-in-1 Design for Hands-Free: Travel fan can be easily converted into handheld, waist, or neck fan for versatile use. The back clip securely attaches to belts, clothes, or bags, and the included lanyard instantly converts to neck hanging mode. The compact, foldable lanyard is easy to store, allowing you to stay cool while jogging, hiking, or working. The outdoor fan is an ideal choice for hands-free cooling | Cooling Companion & All-Day Versatility: Mini fan features a semi-transparent, spray-painted shell (406980mm) for a modern look and portability, making it your go-to companion for travel, concerts, weddings, camping, and beach days. A must-have for summer trips, outdoor activities, cycling, fishing and sportsstay cool anywhere