Features: 45 cups (about 10.65L) large volume, holds enough food for 99 meals, . Feed from 1 to 99 days. Feed from 1 to 4 times per day. User programmable portion sizes from 1/4 cup to 2 1/2 cup. Pet-proof lock on hopper lid, keeps your pets from overeating. Programmable portion sizes and feeding frequency. Built-in clock with easy to read LCD. Built-in microphone, speaker, and a read low battery indicator. A 6-second personal voice message can be recorded to remind your pet that it's the feeding time.