The SureFeed feeder is designed to prevent your pets from eating each other's food. For example, if you have both a cat and a dog, you can easily feed the cat in a SureFeed so that your dog doesn't eat the cat's food.Easy to use: if your cat is chipped, you don't have to do anything. The feeder takes care of all Nordic ID chips. Otherwise, you can attach the microchip tag (included) to your pet's collar. When the pet gets close to the food bowl, the flap opens and the pet can eat. When it leaves, the door closes.SureFeed Automatic Feeder Facts:For cats and small dogs.With microchip or RFID collar tag identification.1 collar tag included.Can be programmed for multiple animals.Suitable for both wet- and dry food.Opens automatically and closes again when pet leaves.Helps control feed intake.Also suitable for feeding special diets or medication.Airtight bowls help keep food fresh.Includes bowl, double bowl and silicone mat.Display shows if battery is low.Battery operated (4 C batteries not