This 4-pack automatic air freshener spray dispenser set is designed for standard 2.56 x 4.41 in fragrance cans and offers flexible fragrance control for a variety of indoor spaces. Each dispenser features three adjustable spray interval settings and a one-touch boost button for an instant burst of freshness. The units can be mounted on a wall or used free standing to suit different room layouts. Battery-powered operation allows cordless placement in homes, bathrooms, offices, hotels, and other commercial areas.