The world of parenting is just a little easier, just a little more reassuring with the AC1100. As the most versatile baby monitor by Angelcare, it combines a quality baby video and sound monitor with an under-the-mattress baby movement Sensor Pad. So now, you can have peace of mind knowing that you�ll be alerted if no motion is detected in the crib after just 20 seconds. Ideal for a newborn infant and young baby who is starting to reach and explore. Keep a watchful eye on your baby or toddler with the live baby video monitor feed from the Nursery Unit to the Parent Unit. It�s like peeking into the nursery ?without opening the door or turning on the light. This baby monitor is definitely an awesome baby monitor.