Our ultra quiet Mighty Breeze Folding Fan is the perfect size to bring anywhere - home, office, boat or beach. 2-speed portable fan provides handy cooling relief on hot days. Battery fan requires 4 "D" batteries or an AC adapter (not included). Folding non-electric fan measures 7" x 6" x 1 1/2"when open, 7" x 5 1/4" x 3" when closed. So handy, youll keep cool anywhere!