This Baby Cry Notification package from Bellman & Symfon is part of the Visit Smart Home System that helps you to keep tabs on your home. This package includes a Baby Cry Transmitter, Alarm Clock Receiver, and Bed Shaker. Those alerting devices in this package are already paired as a system and ready to use out of the box. When the Baby Cry Transmitter detects the cries from your baby, you will be alerted with colored LEDs, audible sounds and bright flashing lights from the Alarm Clock Receiver, and strong vibrations from Bed Shaker which will wake up even the heavy sleepers. The backup batteries on the Alarm Clock Receiver will keep the device fully functional even during power outages. Simply place the Alarm Clock Receiver in your bedroom, and you can sleep in peace knowing that you will be woken up for important notifications. This package is a great signaling system to help people with hearing loss, hard of hearing, and deaf to be informed when your baby needs attention.