From the Manufacturer
900 MHz Technology extends the range of BabyCall Monitor to let you take the receiver farther from the nursery, yet still hear activities in the nursery. It comes with 27 channels to greatly minimize interference and uses FM transmission system with channel selector to locate the clearest channel, helping to eliminate interference for clearer communication.
Designed to offer the clearest connection to your baby
27 channels to minimize interference
Built-in rechargeable battery receiver
Voice activation mode
900 MHz technology for extended range