Automatic Night Vision: The automatic light sensor accurately detects ambient light conditions and automatically switches between day and night modes. A viewing range of up to 15 feet in complete darkness extends your view at night; never miss a moment, day or night. Temperature Monitoring, 8 Lullabies: The camera is equipped with a temperature sensor so you know your baby is comfortable and safe. Soothe your baby by playing lullabies remotely, as if you were in the same room with your little one. Crystal-Clear Two-Way Audio: The crystal-clear two-way audio feature allows for clear conversations at both ends, as if you were in the same room with your little one. Portability: The use of frequency-hopping spread spectrum and digital encryption technology ensures a secure and reliable connection. The portable parent unit can move with you, allowing you to hear, see, and talk to your baby wherever you are in the house.