A. Neck Fan with Hands-Free: USB fan combined with headphone design and carrying concept makes the neck fan convenient and fashionable. It is convenient to carry a personal neck fan with you, allowing you to free your hands and enjoy the cool wind at any time. It is suitable for personal cooling, camping, outdoor sports, travel, work. B. Neck fan with multiple features: 5 speeds are selectable, and the turbo blades save energy. The neck strap can be rotated 360°, the direction and speed can be adjusted, and you can enjoy the cool wind at different angles. C. Rechargeable portable neck fan: Built-in 5000 mAh large capacity rechargeable battery. The neck fan can be fully charged in 2 - 3 hours by wall charger, laptop or power bank, and provides about 18 hours of working time (depending on different speeds).