Description: Specifications: Powered by two AA batteries (not included) Or 5V 1A adapter power supply Make fish owning easier. When you are on the track No need to worry that your fish will die. Easy to use, simple to operate and install Manual and automatic. Moisture-proof hopper keeps food fresh Suitable for most types of food Including flakes, grains or breadcrumbs. The feed trough is transparent So you know how much food is left in it. Food container: Large food container (capacity: 0.2 lbs): 2 grams per feeding 3 times a day, can be fed for 25 days Snack box (capacity: 0.1 lb): Feed 2 grams each time 3 times a day, can be fed for 12 days The package includes: 1 x AK-03 Sunsun fish feeder