FLEXIBLE MEAL TIME AND SIZE-Programming is very simple, you can flexibly set specific meal time and size. You can program the timer to allocate up to 4 meals per day. Set a specific time for each meal and how much food to allocate. The portion size ranges from 2 teaspoons to 4.5 cups of dry food. You can feed according to your plan to ensure that the pet will not be hungry. LARGE CAPACITY HOPPER- Roffie feeder comes with a huge 7 liter (29 cups) hopper. When full of food, it can last from a few days to a week, depending on how much your pet eats. With this machine, you can only use dry food with a coarse grinding degree between 0.2 and 0.6 inches. This ensures that the food is distributed smoothly without clogging. CUSTOMIZED MEAASGE SPEAKER-You just need to record and hold the MIC (Every Assignment) button to record a custom message up to 10 seconds to remind your pet to know its meal time.