[This electric neck fan has a smart LED digital screen that shows real-time fan speed, making it easy to track the wind status. Besides, it also has 5 adjustable wind speeds, so you can adjust the fan's wind speed according to your needs. High capacity 3000maha USB rechargeable fan:Built-in lithium battery - 3000maha USB rechargeable ion, the portable neck fan takes about 4 hours to fully charge. The running time is about 3-6 hours, depending on the air speed you choose. Hands-Free Portable Fan:Upgraded fan is more portable and can be carried in a small bag. It is designed like a helmet so you can hang the fan around your neck to free your hands. The mini hanging neck fan is your best companion on hot summer days. You can free your hands when exercising, cooking, cleaning or traveling. Powerful and Quiet Neck Fan:Our hanging neck fan has excellent technology air amplification and a dual-channel air intake design, which greatly reduces fan noise to less than 36 decibels. It operates at a low noise level and won't disturb you, allowing you to experience it in a comfortable and quiet environment. [This hands-free fan will keep you looking stylish at work, home, outdoors and on the go. It is ideal for personal cooling, indoor cooking, reading, office work, outdoor activities such as camping, hiking, fishing, cycling and more. The neck fan will be your best companion on hot summer days, freeing your hands.