The Baby Cry Transmitter from Bellman & Symfon is part of the Visit Smart Home System that helps you to keep tabs on your home. When the Baby Cry Transmitter microphone detects a certain level of sound for a certain duration (e.g., crying from your baby), it will send out a radio signal to the Visit receiver of your choice. You will be alerted by loud sounds, bright flashing lights, or vibrations depending on your chosen Visit receiver. You can also adjust the sensitivity and delay levels on the Baby Cry Transmitter to work best with your baby’s behavior. The Baby Cry Transmitter is a great alerting device to help people in difficult listening situations, Hard-of-Hearing, and the Deaf to be informed when their lovely baby needs attention. The Transmitter also features additional trigger inputs that can connect with optional Bellman & Symfon accessories, such as a contact mat or magnetic switch, to detect if someone (for example, the baby) is entering/leaving the bed, the room, or opening the window.