AUTO FEEDING - With a timer function to control the feeding amount of 4 meals a day on your personal schedule, so you don't have to worry about sleeping with meals or 2 hours at home 4 days, making you and your life easier. Eat Healthy - Automatic Cat Food is available in 1 to 39 servings (2 scoops per serving). You can divide meals into controlled portions to provide healthy nutrition for pets that eat regularly. USER-FRIENDLY DESIGN - The feeder uses three D batteries (not included) as a backup battery in case of power loss. Personalized voice prompts let your pet know when it's time to eat. The top lock design prevents pets from opening the funnel. Dual power supply - The pet feeder has dual power supply, using 3D battery and power supply (DC power supply included, battery not included). In the event of a power failure, the device will not be reset and will continue to operate. MEDIUM CAPACITY - This 6 liter automatic food will provide your cat and dog with an even meal for several days and will ensure they stay well and happy during your short vacation or long working hours. Healthy meal planning for pets - Maintaining a healthy weight or losing weight for overweight pets is a science, not an art. With a personalized, consistent, and science-based meal plan, you can get your pet back to a healthy weight and stay healthy.