Features: 1. 6L large-capacity grain barrels can store more food, so you can save yourself from worrying about daily food adding. 2. Easily set the time of food and the amount of food to be delivered through the mobile phone, and regularly feed the pets more healthily to prevent the pets from being full or hunger. 3. Pet owners play voices to call the pet at the dining time. 4. The automatic cat feeder is powered by power adapter and 3 D-size batteries. When the power outage, the feeder will continue to function on 3 D-size batteries to assure your pet never miss a feeding. (Batteries are NOT included) 5. It is convenient to observe the remaining pet food in the barrel to prevent contamination of bacterial hair impurities. 6. Handles any range of dry food size up to range 12mm diameter. 7. The food tray is easy to disassemble, easy to clean after use. Specifications: Color: White; Capacity: 4L, 6L; 4L Size: Approx. 23x23x35cm(2.8kg); 6L Size: Approx. 23x23x40cm(3.1kg); Material: Food-grade ABS; Dry Food Size: 2-12mm(Dia.); Suit For: All Sized Dogs & Cats; Dual Power Supply: Support Battery or Power Adapter; Battery: D-size batteries x 3 (NOT INCLUDED); 2 Options: Button Version, WiFi Version; Input: AC 100-240V, 50/60Hz, 0.3A Max; Output: 5V/1A; Button Version: LCD Display; 5S Voice Recording; Manual Feeding; Timing Feeding(Up to 4 Times/Per Day); WiFi Version: 5S Voice Recording; APP Control; Support TUYA,Multi-account Sharing; Timing Feeding(Up to 6 Times/Per Day); Package Included: 1 x Automatic Pet Feeder