The Angelcare Movement Sensor with Sound Monitor gives you everything you need for peace of mind when you are away from the nursery. This Angelcare Deluxe Monitor helps make your job as a parent a little easier. With advanced features, this baby movement monitor can monitor both movement and sound. A sensor pad with adjustable sensitivity slides under the baby"s mattress to detect movement, and if there is no movement, the Anglecare Movement Sensor with Sound Monitor sounds an alarm after 20 seconds. An optional ""tic"" sound lets you hear baby"s movements and the Angelcare Deluxe Monitor offers eight channels to choose from to minimize interference. The Angelcare Movement Sensor with Sound Monitor comes with two parent handsets, four AAA rechargeable batteries, and a changing station. Angelcare Movement and Sound Deluxe Baby Monitor: * Sound and movement monitoring in one system * Under-mattress sensor pad * 8 channels to minimize interference * Automatic battery back-up * Adjustable sensitivity * Handset of sensor pad displays all detected movement and sound from the nursery, along with the nursery temperature * Features vibration or alarm modes