Suitable Capacity:This 7L / 29cup dog feeder automatic consistently provides food for your cat and dog smoothly for a couple of day, assuring you that it' ll stay full and happy when you're out for a short vacation or work long hours.10s Customized Messages:Record your voice messages and play it to make your pets get used to the feeder better while dispensing meals. Automatically broadcast to remind your pets that it's time for meal.Dual power supply:Power the feeder via the included power adapter or 3 pieces D batteries (not included).Battery Backup ensures that your pets get fed even in a power outage.We recommend using the two together in case of power outages.Dear Sir and Dear Madam: Welcome to my little shop, I am honored to meet you here. No matter how many times you come to my store, I will serve every customer with all my heart. I very much hope that there are products in my small store that can help you and provide your pets with a better living environment and more comfortable living conditions. If you don't understand something about the product, please give me a chance to answer your questions.