Audio Baby Monitors are a fantastic way to keep track of your baby just by hearing them make sound. They are fantastic for use over a large space in your house and pick up clear noise definition without the interference of background noise. These Audio based Baby Monitors are perfect for parents who may feel as though seeing their baby could provoke feelings of anxiety, however hearing sound will allow them to remain relaxed. These Baby Monitors are also great as they limit interference with other networks in your household.