Features: Automatic fish feeder can feed the fish food regularly and quantitatively, even if you are on vacation or out, you don't have to worry that the fish will be left unattended. Support manual and automatic feeding, the time interval of automatic feeding can be set by yourself, manual feeding just press the button and it will feed instantly. 220ml large storage space, no need to add food frequently, large diameter bin opening, can store various of fish food, such as strips, powders, granules and flakes. Feeding volumes is adjustable, the opening size can be rotated and adjusted, you can decide how much fish food to put according to the number and size of fish. Powered by 2 AA batteries (not included), low power consumption, long endurance, free from wires, easier to install and place, safer to use. Support clip tanks wall mode or flat mode, you can choose according to your needs, perfect for all kinds of fish tanks or aquariums. Specifications: Type: Basic/Upgrade/Intelligent(optional) Material: ABS Storage Capacity: 220ml Power: 2 * AA Battery(Not Included) Item Size: 170 * 120 * 155mm/ 6.7 * 4.7 * 6.1in Package Size: 240 * 187 * 80mm/ 9.4 * 7.4 * 3.1in Package Weight: 350g/ 12.3oz Packing List: 1 * Fish Feeder 1 * User Manual