Neck Hanging Design: -This with unique portable USB rechargeable battery, mini handheld, 360 degree rotation, portable, hands-free, super long life personal neck fan hanging on your neck, portable neck personal fan was designed to free your hands. It is ideal for personal cooling, outdoor events, office, camping, traveling, this personal fan is a good way to solve the sultry face and neck! USB Rechargeable Design: -The neck fan has a built-in 2000mAh super long-lasting rechargeable battery, up to 6-20 hours of cooling time in a full charge (depending on the use of wind speed). allows you to enjoy it while traveling, it is ideal for on the go. , 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 hanging fan for one-button control design (switch/wind speed), fully adapted to 3 adjustable wind speeds (low/medium/high), adapting to the most comfortable wind. It is easy to adjust to