I know there are a lot of threads already out there on barn cams, but I can't seem to find what I'm looking for, so I just wanted to make sure before I give up and buy an audio only baby monitor. I have no electricity in my barn and my wifi won't reach. Are there any completely battery operated, non wifi barn cameras that I could use for kidding? I couldn't find any. If I'm out of luck, do any of you have any recommendations for audio only monitors?