AUDIO BABY MONITOR WITH DECT TECHNOLOGY: The Motorola AM21 audio baby monitor has a strong and consistent connection due to the DECT wireless technology that allows you to control the volume on the parent unit and listen in on your little bundle of joy. LONG-RANGE BABY MONITOR: Be able to hear your little one from the baby nursery in any room in the house with extensive range up to 1,000 ft. These baby monitors are ideal for getting chores done around the house so you can listen in while staying busy. SOUND FEATURES: Conveniently hear your baby at the perfect volume with built-in volume control from the parent unit. This one-way communication monitor includes a high-sensitivity microphone to alert you once your baby starts crying. PORTABLE PARENT UNIT: Can be powered by battery (AAA x2, NOT included) so you can carry from room to room and when disconnected from wall adapter. Allows you to keep a close ear on your baby while staying active and on-the-move. LED LIGHT INDICATION: The parent unit and baby unit feature a power-on visual LED indication light as well as an out-of-range visual LED indication so you can feel secure knowing you are connected with your baby.