The Hubble Listen Audio Baby Monitor finished in white gives you peace of mind when your baby sleeps. The sensitive microphone picks up subtle sounds and the sound indicator visually shows the noise level. The monitor also provides information about the room temperature and includes a wireless range of 300 meters, with an alarm that sounds if you are moving too far away or when the battery is low. The parent unit plugs into the mains so you don't need to worry about batteries running out during the night and makes it simple and easy to use.