Summer Baby Pixel Cadet Video Monitor review: A virtual boundary provides a "safe space" for your infant

With Wi-Fi baby monitors bringing all kinds of futuristic features to the nursery, radio-based models have had to be more creative to keep up. The Summer Baby Pixel Cadet ($170) adds some high tech to its conventional setup with a SleepZone Virtual Boundary feature that alerts you when your baby moves outside of it. The camera The linchpin