Programmable: The timer allows you to set up to four automatic meals per day. You can schedule it to feed at any time of the day or night and set up single, double or triple feeding, and you can also feed it manually and enjoy feeding the fish by yourself.</p > Moisture-resistant design: Moisture-resistant hopper keeps food dry without getting wet or stuck. It holds most types of food, including flakes, pellets or crumbs. Two different installation methods: The feeder has 2 installation methods to choose from. The first is to use a bracket to attach the dispenser to the tank wall. The other is to stick the dispenser on the tank lid with the included double-sided sticker. LARGE CAPACITY: With a capacity of 200ml, its large size can hold enough food to feed your fish when traveling. The hatch-style feed door is fully adjustable, allowing you to decide how much food to portion at each meal. Easily add food: Add fish food on top of the dispenser without removing the food bucket, so you can easily increase or decrease the amount of food dispensed. Since the base of the digital dispenser rotates 360°, you can rotate it to a position that suits you after installation. Size: 15*7.5*11 cm The product does not include batteries Tips: Do not twist the power box by hand. Please place this item above the tank higher to avoid water. Operates with two AA batteries (not included), easy to replace the battery yourself. Note: The data are all measured manually , Please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the actual item received.