Digital Audio Monitor with two parent units with DECT 6.0 digital technology provides crystal clear transmission, eliminating the annoying white noise you hear from analog monitors. Extended Range Up to 1,000 feet of range allows you to feel safe and connected to your child while you go about your day. Talk-Back Intercom System Remotely communicate to your baby from the parent unit to the baby unit. Soothe your baby from another room or even from outdoors.