Review on 🔋 O2COOL Treva Portable Battery Operated Fan - 10 Inch Blades - Smart Power Air Circulator for Camping, Travel, and Indoors Use - Includes AC Adapter, Rechargeable Batteries, and USB Charging Port by Mark Fleming

This fan is a great idea. It charges with built-in batteries and there is a D-cell battery compartment at the bottom. It has a USB port where you can connect your phone or other device for charging. What I don't like are the skinny legs. They form cracks that should not occur in a properly designed part. Bought used from Revain. It arrived poorly packaged, one of the legs was already broken. With plenty of glue I was able to fix it. All in all I am not very happy with this purchase.