Personal Cooling Portable Neck Fans - USB Rechargeable 360 Free Rotation and Lower Noise Bladeless Battery Operated Design with 3 Speeds Duration 48 hrs Small Neck Air Conditioner. (white)

LISM【USB Rechargeable & 3 Speed Wind】Portable fan convenient to charge via computer cell phone charger power bank laptops etc. mini fan portable with a 4000mAh battery which increases the wind power and battery lifespan. Three levels speed adjustment functions allows you to choose the air volume you like. The first speed can work for 19-21 hours the second speed for 7-9 hours and the third speed for 3-5hours.