Bladeless hands-free fan with digital display 4000mAh neck cooling fan 5-speed USB rechargeable fan suitable for family outdoor sports Feature: 1. Smart display and semiconductor cooling chip: this portable air cooler has a smart electronic display that can show three different wind speeds and smart icons. The built-in semiconductor cooling chip cools the air, just like a mini-fridge. Its aluminum cooling panels convert body heat into a cool breeze for instant cooling. Effective cooling -10-15C. 2. Strong air volume range: The neck fan's twin turbine air supply system has a strong air volume and safe operation. The full-coverage fan blades won't tangle your hair. It has two different nozzles and an angled ventilation system in the neck strap to keep you cool from all angles. 3. Five-speed selection: five neck cooling fan speeds can be selected, with a digital display providing customizable cooling levels. 4. large battery capacity: this hands-free fan is equipped with a large 4000mAh rechargeable battery that can last for hours up to 18 hours. It also charges easily using a laptop, PC or adapter. It can be fully charged in 2-3 hours. 5. Portable and ergonomic design: the portable neck fan allows you to relax anytime, anywhere. The soft, lightweight silicone material prevents slipping, and the flexible neck strap adjusts perfectly to the curve of your neck. Its stylish design makes you look cool and can be taken anywhere. Specification: Neck fan: portable neck fan Color optional: brown, white, blue, green Material: ABS+silica gel +electronic components Power supply method: USB charging Battery capacity: 4000 mAh Charging time: 2-3 hours