Epica 10" Inch Portable Battery Operated Fan with Adapter Perfect for your Home Every Day Use and for Emergency Power Outages, Camping, Sporting Events,Hurricane Preparedness Powered by 8 "D" batteries (not included) or AC adapter (included) Up to 40 hours of battery life Two fan speeds Tilts to direct air flow where you need it Stable U-shaped base -Folds flat for storage or travel