The Honeywell DCP311 wireless push button combines great functionality with a best-in-class design. It features a secret tapping function which plays an alternative melody when the doorbell button is pressed three times in quick succession, informing inhabitants that family members or friends are at the door. The doorbell button utilizes Honeywell ActivLink™ technology, providing a larger range, improved battery life, and a constant connection, making it immune to signal disturbances. An LED light reliably indicates that the doorbell button is working, and there is also a display for low battery status. This device can only be paired with a doorbell of Honeywell Home/Friedland with the same RF communication - MHZ868. Weight: 0.05180863157 pounds.