Beautiful and compact, this quiet diffuser will disperse oil up to 200 square feet in any space. It features a refill pad compartment for easy storage. Simply add your essential oil to the pad and press the button. Run Time: Continuous Operating Modes: Continuous/ Off Light Mode: N/A Power: By AA batteries (not included) or USB cord Coverage: Up to 100 sq. ft Included: 3pc Refill Pad and USB Cord Dimensions: 4 x 4"