Maybe we got a lemon, but out of the box this monitor acted irratic. The primary concern is with the base. When it displays the channel, it's working. But sometimes we have to unplug it for quite some time to get the base to work. And when the base doesn't work, the receivers sound like a weather alarm. Not fun at 3 am. I checked Fisher Price web page and it didn't mention a problem exactly like ours.We are going to return it for another brand.