Neck Hanging Design: - This mini portable neck hanging fan is built-in a unique portable USB rechargeable battery, 360 degree rotation, hands-free, super long life, designed to free your hands. Ideal for personal cooling, outdoor events, office, camping, travel, this personal fan is a good way to solve the problem of stuffy face and neck! USB Rechargeable Design: - The neck fan has a built-in 2000mAh long-lasting rechargeable battery, up to 6-20 hours of cooling on a full charge (depending on usage and wind speed). allows you to enjoy it while traveling, it is ideal for traveling. , this small portable neck fan is USB rechargeable via power bank, car charger, USB socket or laptop. 3 Adjustable Speeds & 360 Degree Rotation: - Portable neck fan with one-button control (switch/wind speed), fully adapted to 3 adjustable wind speeds (low/medium/high), adapting to the most comfortable wind. It is easy to adjust according to the desired wind speed. Both arms of the fan are flexible and can