Pet and smoke free home. Great to use when traveling too. Audio Baby Monitor with up to 1,000 feet of range with DECT 6.0 technology. Vibrating sound-alert on the parent unit lets you know when Baby is awake. Two-way, talk-back intercom, so you can comfort baby with the sound of your voice from the other room. Backlit display on the parent unit with low battery alert. Rechargeable battery and belt clip included.