Air freshener starter kit includes everything you need to bring the delights of summer into your office. White Flowers & Melon Summer delights scent enhances the air with florals, sweet melon & vanilla notes for up to 70 days. Battery-operated dispenser releases the fragrance on a regular timed interval to let you enjoy fresh waves of your favorite fragrance throughout the day. Adjustable design offers three different settings to choose from to easily pick the fragrance level that's right for you. Because each spray is a controlled dose, you get the same level of fragrance from the beginning of the refill to the end.