Timed Automatic Feeding: The 4L automatic cat food dispenser offers precise portion control to prevent overfeeding or underfeeding. You can schedule up to 4 meals per day with adjustable portion sizes, from 1 to 20 portions per meal, each weighing 7g ± 2g. This ensures your pet maintains a healthy weight. Additionally, a manual feeding function allows you to give your pet an extra reward or an additional meal. Pet Food Preservation: Keep your pets food fresh and crunchy with our advanced preservation system. The safety locking lid prevents access to stored food, while the desiccant pouch and closed food outlet maintain optimal freshness. Rest easy knowing every bite your pet takes is as fresh as the day it was poured into the dispenser. Reliable Power Supply: Our automatic cat feeder is equipped with dual power sources for continuous operation. It can be powered by a 5V DC adapter or 3 D batteries (not included).