1. 2.4GHz WIFI Control Easy to control feeding with mobile phone via app either at or out home. The APP can set various flexible timing functions, allowing you to feed on a weekly or daily basis. Or feed at intervals. Accurate timing and quantitative feeding. It can also be controlled manually through the APP or by pressing the button on the machine. Supporting Android IOS system. 2. Two Timing Modes Timing mode: feed according to the specific time set. Interval mode: set the first feeding time, and then set an interval time period, the fish feeder will feed according to the interval time. 3. Power Source The smart fish feeder uses USB for direct power supply, the charging head and data cable are included in the package. please make sure there is a power outlet near your fish tank. With adjustable clamp, you can easily tighten the screws to fixate the feeder on the aquarium, convenient for assembly and disassembly. 4. Clever Design The smart fish feeder has four output bins of different sizes, which can be replaced according to the size of the fish food (included in the package). The fish feeder can add a fish food storage bin on the top of the machine, and the total capacity can reach 430ML after the increase (the extra storage bin is included in the package).