Graco Ultra Clear Vibe Baby MonitorYou need to know your little one is okay. The Graco Ultra ClearTM Vibe Baby Monitor offers our exclusive vibration notification technology and crystal clear sound with sound lights to help you keep tabs from anywhere in the house. With 49MHZ technology, it offers a range up to 500 feet and two channels for added privacy. It also comes with two parent units so that both parents can keep tabs on baby from different rooms. And the nursery unit has a folding antenna