Air Wick 77964 Sparkling Citrus FRESHMATIC Automatic Spray Kit, specially designed as a starter kit that contains everything you need: an automatic unit, a fragrance spray, and 2 batteries are included. You can set it to spray light fragrance every 9, 18 or 36 minutes for constant freshness. Lasts up to 60 days (on 36 minute setting), and each refill contains approximately 2,400 sprays. Keep your home smelling fresh... automatically!