There is a Secret Knock function which plays a different melody or illumintaes a different Halo colour*, letting you know friends or family members are at your door.
All Honeywell push buttons and accessories are easy to install, with optional screw-free installation and an easy open battery compartment so it can be installed in a few minutes minutes.
Honeywell ActivLink™ is an innovative wireless protocol using the 868MHz frequency to provide a greater range, improved connection reliability, and with extended battery life of up to 2 years..
*Only applies to Series 5, 9 and DC315N, DC315NG and DC315NBS Doorbell
What's in the box
1 x Push Button
1 x Push Mounting Plate
1 x CR2032 (3V) Battery
1 x Quick Start Guide
Fixings and Fittings