10 Lbs 4.5KG Automatic Pet Feeder Programmable Dog Cat Puppy Bowl Food Dispenser by Qpets The feeder does not come with AC adapter, it works with 4-D alkaline batteries With large capacity and hold food up to 10 lb. Dispense from 1/4 cup to 5 cups The AF-200 is the most advanced programmable pet feeder on the market Built in voice recorder and speaker so that you can record your own voice to call your dog for food Up to 6 months long last battery life,Great for small to large pets,Requires FOUR "D" size batteries.Batteries are NOT inclued.