Powered by a long-lasting lithium battery. Prevents electric shock with its wireless operation. Features three layers of filtration media for optimal water cleanliness. Includes an adjustable light that makes it paw-fect for all hours of the day. Automatically turns on when your pet comes into range. Give your fur baby constant access to fresh, running water with Petdiary Wireless Auto-Sensing Dog & Cat Feeder! Powered by a lithium battery, this fountain automatically turns one when your pal approaches it, which encourages him to drink more water. It is completely wireless, meaning you do not need to worry about your fur baby electrocuting himself or chewing on wires. With three layers of filtration media, this convenient fountain is sure to provide your pal with the cleanest water possible. It has a multicolor light with a nighttime mode, so it can be used as a nightlight as well. Simply fill it every two weeks and change the filter when directed to help keep your furry friend hydrated!