***** **********Best Quality Guranteed. *****AS SEEN ON BUSINESS INSIDER, FOX, ABC, NBC & CBS News - "It's built well, and it has a nice minimalist style" - Business Insider, 08/21/15. Our doorbells are great looking, loud, and reliable. *****The L Series is a CONFIGURABLE and EXPANDABLE doorbell system that can EASILY ADD on 20+ more extra receivers, transmitter buttons, motion sensors and door sensors. Custom build your own system that fits for your needs. Easy to use pair-able random generated frequency code technology allows you to mix and match L Series components easily with one or multiple receivers.
*****Multiple receivers can be configured to RING WITH DIFFERENT chimes/ringtones to let you know which transmitter was triggered _- a very convenient feature for multiple doorway entries. *****Built in receiver MEMORY feature RETAINS doorbell chime/ringtone selection even when receiver is unplugged or powered off. Long range operation with the receiver at over 500 feet*****Includes 1