Our monitor worked great for about 4 months, and we used it very rarely. After this time period, when we turned it on, it had a message that said, "Out of Range." Even when we are in the same room with the camera, we still get this message, which means the monitor itself is broken. We have tried calling the company several times, no one picks up. Sound/Video Clarity For the first few months we had the monitor, and it worked, the sound and video were clear. I was very happy with the sound and video clarity, when the monitor was in good working order. Interference There was background noise with the monitor, but it did not interfere with the clarity of the sound of the baby making noises. Durability The monitor was not durable at all. It never dropped or sustained damage of any kind... it just stopped working one day, out of the blue. With a message that read, "Out of Range" I believe the monitor was not durable and was not made to last. Portability This was a very portable product, while it worked. I could take it across the house, and it was always in range. It was very easy to connect and move around (not complicated at all). It was self explanatory and therefore, could easily be set up anywhere you wanted to put it.