This is the Yamasa Tokei Keiki pet automatic feeder "Wannyangurume CD-300". It is designed for indoor use for small dogs and cats. It can be set for two meals, providing peace of mind when you are away. It has a timer function that can be set from a minimum of 2 hours to a maximum of 48 hours. It operates on one AA battery and is easy to use. The tray capacity is approximately 150g (standard for dry food). There are occasional malfunctions. Please leave a comment if you have any questions.