This sleek monitor was designed to make it easy to stay in touch with baby, and two receivers make it more convenient than ever to monitor baby from different locations in your home. There are sound-activated lights on both sides of each receiver so its easier to see babys activity from wherever you might be. Theres also a built-in nightlight on the transmitter to help you see better when youre peeking into the nursery. And with two channels to minimize interference, youll have a crystal-clear connection up to 400 feet!