Customize Feeding Time and QuantityThis automatic pet feeder offers flexible meal portions, from 1 to 20 servings per meal, 5 grams per serving, with a container capacity of 3.5 liters. Recording ReminderWith a recorder and speaker, this feeder can record your voice for 12 seconds to call your puppy or kitten to eat. Your personal voice will keep your pet from being alone and from missing meals when food is ready. Accurate Meals Every DayAfter setting the amount of food for each meal, the accurate amount of food will help your pet maintain a good habit of eating on time and keep eating. Built-in Infrared SensorThis automatic pet feeder has a built-in infrared sensor. When the size of dry food filled in the bowl exceeds 1 cm3, the machine automatically stops to prevent pet food from clogging or overflowing. Battery Backup PoweredThe feeder can be powered by a power adapter or 3 D-size batteries (batteries not included). The battery can keep the feeder working for more than 6 months, so you don't have to worry about power issues when you are away from home or on vacation.