1. Three-Speed Adjustment & Long Battery Life: Experience customizable comfort with our Neck Fan featuring one-key wind control. Choose from three speeds—low, medium, and high—to suit your preference. After a full charge, enjoy up to 20 hours on low, 12 hours on medium, and 7 hours on high, ensuring lasting coolness throughout the day. 2. 4-in-1 Design with Power Bank: This versatile fan functions as a handheld fan, desktop fan, and neck fan, while also serving as a mobile phone holder. Equipped with a 3000mAh power bank, it allows you to charge your phone while enjoying refreshing airflow. Ideal for students, professionals, athletes, and anyone on the go. 3. Strong Wind & Ultra Quiet Operation: Featuring a brushless motor and 7 fan blades, this personal fan generates powerful airflow while maintaining a quiet operation. It operates reliably, providing a stable cooling experience. Compatible with USB power sources such as adapters and power banks, it easily transitions from a desk fan to a personal fan. 4. Compact and Foldable: With a folding size of just 0.7 x 3.15 x 6.5 inches, this fan is portable and easy to store in your pocket or backpack. Perfect for outdoor activities like shopping, camping, or hiking, it ensures you stay cool wherever you go. This fan combines functionality, convenience, and portability, making it a must-have accessory for any lifestyle.