Programmable Auto Fish Feeder --- With a robust framework that includes an HD LCD display, our product could provide up to 4 feedings per day and feeding 1-3 winding each time. Simply set up the feeding times on your demands, it can help your pets develops a good eating habit. You can also feed manually and experience Easy to Operate --- It is so easy to add the fish food at the top of the aquarium tank timer feeder. No need to take down the food bucket, you can increase or decrease easily the amount of dispensed food. It's feed door is completely adjustable. Every meal is controllable. The silo can be disassembled and washed easily, bringing you more convenience. Large Capacity200ml & Moisture Prevents Design --- It accommodates most types of food, including flakes, pellets or crumbles. With the enclosed type design, the cap of this feeder can be adjusted automatically to upwards in per turn, so that the food won't get wet or jammed. 2 Different Fixing Methods --- Our auto fish feeder food dispenser is suitable for a variety of different styles of fish tanks. One is to fix the feeder to the tank wall by using the holder. This method is suitable for open fish tanks without top cover, because you need to attach the fixing bracket to the main body. Another is to paste the feeder with double-side sticker on the tank cover. Please make sure the fish feeder is fixed over the water level and avoid it fall into the water. Consumption & Super Quiet --- The fish feeders is powered by 2*AA batteries (Not Included). Full charge of the batteries usually can be used for 3-6 months depending on the number of the feeding set. It is convenient to replace the battery and battery-operated is safer for your house when you are out. Its hard to hear the sound when it works even at quiet nights.