This baby monitor is small but very powerful. You can adjust the microphone sensitivity of the transmitter and the receiver volume. The temperature of the baby's room is shown on the receiver and an alarm can be programmed to warn if the baby room goes below or above the setpoint (2 configurable setpoints). At the onset, it is soft (not good to predict in bed at the outbreak of the baby monitor) and the sound quality is impressive. Really means very good. And icing on the cake baby monitor is one that emits less harmful wave (or not is not clear, but in doubt ...) baby. Despite a low price, I highly recommend it.