Chicco Baby Monitor Audio Digital Classic is an intercom indicated for listening to the sound in the environment where your baby is. It has DECT technology that minimizes interference and ensures maximum privacy in the communication between the two units. The parent unit has a practical support to hear the sound in the best way. Features 10 volume levels. Contains two network adapters. Transmission frequency band: 1880-1900MHz. Operating range: about 300 meters. Before use, carefully read the warnings and instructions on the product packaging.