features an earphone design. It is perfect for travel, running, and camping.Features:Rapid Cooling: Equipped with a dual cooling system, it can achieve rapid cooling of at least 10?? within three seconds.Comfortable and Fashionable: The hands-free fan adopts an earphone design, and the bladeless neck fan can avoid tangling hair and does not generate heat, making it fashionable, comfortable, and lightweight.Long Battery Life: It is USB rechargeable with a built-in 4000mAh large-capacity battery, which can be fully charged in just 3.5 hours.Versatile and Convenient: The first-level wind speed can last for 10 hours, and the third-level wind speed + cooling mode can run for about 2 hours.Stay cool and comfortable with our portable neck fan, the perfect companion for your outdoor adventures and daily activities.