Great for cats and dogs, this fully automatic pet feeder features a tough plastic base that holds a food reservoir for food on demand." The electronic pet feeder"s simple programmable electronics prompt the feeder to dispense portions from 1/4 to 2 cups at three selected times per day. The unit can be set to meet scheduled feeding times and amounts when caretakers are away but it is not meant to replace human care--please be sure someone still visits the pet daily. The unit"s hopper holds 5 pounds of food and accommodates a full range of dry food sizes shapes and types. The feeding bowl is removable for easy cleaning. Required batteries which are not included sustain a long battery life of six months. When the voltage is set at 4.5v, the light does not blink. Once battery drain takes place and the volts drops to 3.7v, then the low battery indicator will begin to flash.One-year limited warranty."