Instruct: Classify the given review as either positive or negative.
Query: interference

I too had problems with interference. We could see my son in his bed, but there was a rotating, popping line that constantly went through the screen. The noise was loud and irritating, so we couldn't use the sound. We had to hook up another "sound" monitor to hear him, and use only the video on this unit. We have tried a few different video monitor models, and the Safety 1st brand always seems to have this problem. I guess if you're willing to unplug all the other electronics and phones in your house, you may have a chance with this one...