This feeder recognizes your pet's microchip and only opens up for them. It is ideal for weight management and portion control as it accurately weighs your pet's food using integrated scales and you can find out what your pet eats each day. Use the Sure Petcare app to see how often and at what times your pet eats, as well as the amount of food eaten. This gives you a better understanding of your pet's feeding behavior. The dispenser has microchip recognition. Has a white color. Made of plastic. Measures 21x23x31cm. Batteries required (not included). Note: You need a Sureflap Hub to use the App features Can be used for cats and small dogs.