I am reviewing the Sony Baby Call Monitor.
The signal is completely clear, except right next to some of our cordless appliances. We have a fair amount of wireless signals through our house (home phone, cell phones, internet, video game controllers) and were able to find a clear channel (there are 27 available) on the second try. Most less expensive monitors operate at a lower (and more commonly used by other appliances) frequency; we've found that this monitor's 900 MHz works great.
The voice activation setting works as it should. The receiver shuts off when the baby's room is transmitting only white noise (in our case, the loud clock on the wall and the music box in the crib), turns on when the baby whimpers, and turns off when the baby is quiet. There is no "click" when the receiver comes on.
The range alarm, which is designed to tell you when your receiver is out of range of the baby's transmitter (not when the baby is out of range of the transmitter) has never gone off as I walk around our 2000 sq. ft. house and small yard.
4.39 overall from 41 reviews
from $200 at 1 merchant
4.38 overall from 34 reviews
from $103 at 7 merchants