This is a kind of fish feeder, Wifi APP to supports remotely control, meet accurate feeding time and countdown feeding time can be set, maybe with about 30 seconds delay. The discharge port is adjustable which suits for a variety kind of feeds like pellet, particle, flake and small strip. Perfect choice for daily used no matter you are not at home, at work, on weekend or on vacation. Features: With Wifi APP to supports remotely control, meet accurate feeding time and countdown feeding time can be set, maybe with about 30 seconds delay. Perfect choice for daily used no matter you are not at home, at work, on weekend or on vacation. Time obtains servo system, can automatic obtains the global local time and calibrate. The servo system will starts automatically and continue to feed according to the feeding time which had been set before, when the network is disconnected. The discharge port is adjustable which suits for a variety kind of feeds like pellet, particle, flake and small strip. Fish feeder for aquarium fits small, medium and large fish can. Intelligent feeding protections function, when power off happens, the feeder will stop working. Because the filtering system, circulatory system and purification system will stop at the same time which may cause loss of appetite for fish. If the feeding still continues, which may increase the eutrophication of water and release of ammonia nitrogen, which will hurt your pet fish. USB power manual feeding function, easy to get USB power, no need of cell. After you connect the USB power, you just need to press down the button on the feeder or in the APP (need to connect the feeder by Wi-Fi), it will rotate a circle with 360 for feeding. Specifications: Name: Fish Feeder Material: ABS Color: black Item size: 135 * 155 * 60mm / 5.31 * 6.10 * 2.36in Item weight: 251g / 8.85ounce Package size: 200 * 75 * 70mm / 7.87 * 2.95 * 2.76in Package weight: 300g / 10.58ounce Package List: 1 * Fish Feeder 1 * USB Cable