Although monitors have opened up a whole new world of freedom and reassurance for caregivers, they’ve also led to an invasion of privacy. Unbeknownst to many caregivers, private sounds in your home can be picked up by your neighbor’s monitors, cordless phones, or scanners. This monitor, however, comes with a customized voice-scrambling system, which means that your personal conversations will be inaudible if they are picked up by outside devices. Along with the added privacy, this monitor has other attractive features–such as a 2-channel option to minimize interference, an alarm signal if the monitor signal is interrupted, and a light system that lets you see the volume level of a baby’s sounds. The receiver and transmitter can be plugged in with AC adapters (included) or run off batteries (not included). One year limited warranty. –Gail Hudson