Because we know being a parent can be hard enough. With zero WiFi, radio or Bluetooth frequencies, this is a baby newborn essential for infants between 0-6 months old. EVERYONE RESTS EASY: A flashing blue light on the baby safety monitor unit reassures that everything is as it should be.
Works very good for what it does. Glad it takes batteries that are easy to replace. Blinking light could be annoying I suppose to some people but doesn't bother me.