CFZC Newest Mini Personal Rechargeable Handfans USB Battery Operated Electric Personal Fans for Home Desktop Travel and Outdoor 18650 Battery USB Cord Included(Color Black) Free to turn down or turn up air volume with the stepless speed technology. Efficient power and conversion circuitry can minimize the loss to save energy and protect environment. USB Mini Fan is an ultra efficient mini fan with three convenient speeds, USB rechargeable battery and five great colors. Blows smoke and smells away,great for traveling in hot weather,the fan works from 2.7-10.8 hours after fully charged. One Led lamp designed on side. Mini Foldable design; can be used as a desktop fan or handheld fan. With a hanger can be attached to umbrella. 100% pure copper brushless motor makes F95B fan working 10000 Hours lifetime, 3150RPM/min (other USB fan is below 2000RPM/min), high energy conservation.