Double Fresh Lock Door - Attach the silicone seal to the door of the feeder outlet and then add the desiccant box on top of the feeder. Keeps food fresh and prevents moldy feed. Never gets stuck, self-adapting system, intelligent system - Following the principles of bionics, Pekit creates a self-adapting system with a vibrating rod, spring testing board, and silicone wheel. Never gets stuck, never jams, even after a million tests. Smart Phone Control - Set your own feeding schedule or choose a specific Pekit feeding plan based on your pet's background and information. Wide-range remote control, one button controls and receives messages through the Pekit app. Runs on 3 D batteries or a DC power cable to the outlet. Minimum feeding unit per meal: 10 g; maximum supply: 400 g. Smart Pet Feeder Fresh Element.