As a parent, your baby?s safety and well-being are always at the top of your mind. Luckily, the Angelcare AC110 Sound Baby Monitor offers crystal-clear sound quality so you hear every peep, every cry, and every laugh that baby makes when you are out of the room. Features: Parent Unit Voice-Activated Sound Transmission Continuous Sound Transmission Two-way Talk Back Temperature Control/Alarm on Parent Unit Volume Control Low Battery Alarm on Parent Unit Nursery Unit / Camera Unit Mains Power Nursery/Camera Unit Temperature Indicator