10" ventilation surface for maximum air flow. Legs lock open to provide a sturdy base for tabletop use and lock closed when not needed. Handle opens for easy portability and folds in for easy storage. Awning hook allows you to hang your fan outdoors while you enjoy the shade from your RV's awning. Easy-click on/off switch with two settings. Includes DC car adapter. Also can use 8 "D" cell batteries (not included). 1/box.