The Air Wick Essential Mist Linen & Petals Starter Kit includes a black plastic diffuser and refill, powered by 3 AA batteries. This modern and sleek product is designed for indoor use in any room of the home. The soothing scent of linen and petals is released through the mist form, providing a relaxing atmosphere. This starter kit from Air Wick is a convenient and stylish addition to any home, offering a pleasant scent experience without the need for a humidifier.