Hands-free hanging neck design: The stylish design of the hands-free fan allows you to put your hands anywhere the fashionable style makes you look cool. Hanging on the neck, suitable for traveling in hot weather, very suitable for indoor and outdoor activities .3 adjustable speeds: The brushless advanced motor supports 3 speeds of wind. Press the power button to adjust the appropriate fan speed. The strong airflow keeps you cool. Hang the cooler fan around your neck and carry it with Acsergery you. .USB rechargeable: Built-in 1500mAh lithium battery, it can work for 3 to 10 hours after being fully charged. Equipped with Acsergery a USB charging cable, it can be powered by any power source with Acsergery USB output, such as mobile power supplies, laptops, computers, AC adapters, etc. .Exquisite and compact Mini USB fan is made of professional high-performance brushless motor, with Acsergery faster speed, larger air volume and lower noise. This portable fan is suitable for family, cooking, travel, outdoor activities, office, Personal cooling, with Acsergery a 90 foldable stand is also an excellent personal desktop fan. .100% guarantee: Cost-effective and high-quality fans will not let you down. We are responsible for our products and customers. If you have any questions about our products, please contact us first, we will solve it for you within 24 hours. .