Title: please read this before you buy
Review: No problems with sound. The problem with this monitor is when you use it with the battery. The monitor does not work when the battery is low but power light stays on until the battery is completly dead. There is hours between the two. I realized this after I thought my son was sleeping for an hour long nap. I was outside pulling weeds - monitor in hand. When I opened the door I heard him screaming like never before. He looked like he was probably crying the entire time. The power light was still on. I left it on to see how long it would stay on. 3 more hours. Major false sense of security - very disappointing.
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