Designed for moistureproofing, mixing, and crumbling food. No jam, no clog and no fuss, programmable food volumes and feeding times, up to 4 times setting in one day. * Can fill the container with food without disassembling the automatic feeder. * By adujusting the slider, you may increase or decrease the amount of food dispensed per rotation, Works with dry loose flakes or pellets. * A clear easy-to-read LCD screen which shows all info at a glance, Has a built in digital clock for accuracy, the logo "Lo" displayed on the LCD indicates the power is low, powered by 2*AA batteries. (NOT included) * Can work both automatically and manually, simple operation and installation, safe and convenient, mini shape, space-saving for your aquarium.