The Spa Trekker portable aroma diffuser is a perfect diffuser for offices, dorm rooms, and is small enough to travel with. Fits perfectly in your car cupholder. Conveniently USB powered (5v) it plugs in easily in hotel rooms or for international travel. With a run time of up to 6 hours, it provides powerful aromatherapy in a compact model. Run Time Up to 6 hours Case Weight 4 lbs Actual Unit Size (L” X W” X H”) 3″ X 3″ X 4.5″ Capacity 60 ml Misting Modes Continuous/ Off Light Modes Color Rotating/ Off Color Change n/a Coverage Up To (Sq. Ft.) 400 Auto Sensor Shut Off n/a Power 5V USB