With a high range of 300 meters (in open areas), you as parents have a large movement radius. As soon as the connection to the baby unit becomes too weak, you will be alerted by a signal tone. The innovative DECT technology ensures interference-free reception, meaning that neither background noise nor other baby monitors and radio devices in the neighborhood will be received. The Safety 1st Safe Contact focuses entirely on your child. You can set the baby monitor to continuous reception or use the VOX function, which means the device only transmits when your child makes noise. The three light indicators on the parent unit show the intensity or volume of your baby's sounds. The parent unit is conveniently sized to fit in your pocket, so you can always have the device with you while keeping your hands free for everyday tasks. With the included batteries, it can be used for up to 5 hours without a power supply. If the parent unit is misplaced and forgotten, it can be located using the search function on the baby unit, which emits a signal tone.