Infant Optics Video Baby Monitor is a top-selling monitor for several good reasons. The interchangeable lens technology allows you to try out different views and angles to make sure you have the best view of your child. If you use a video monitor with a static view, there will be times when you would leave the baby’s room only to find the camera was not pointed at her or she had moved and was no longer in view. This made the video portion of the monitor basically useless unless you wanted to go back in and move it in the dark. The battery life on this baby monitor is also impressive. Although this is an expensive purchase, with these features it is well worth it.