SET THE TONE With The Only Truly Digital MP3 Doorbell...

The Tommyknocker is a USB, all digital doorbell. MP3 sound files may be uploaded to the Tommyknocker USB memory stick via a computer.

 Quick Links  
Download Free "Rare Music Tracks from Stonecold" 
Download Tommyknocker User Guide

Wiring Diagram 6 Wire
Wiring Diagram 7 Wire

FAQ - Two Wire doorbell systems &  Lighted Doorbell switches

Testimonials


“Thanks Scott.  The recommendation ….worked!!   Didn’t need to redo the USB stick.   Great customer support.  Thank you”.

Tim Taylor
Santa Cruz, CA
 

“Scott-Thanks again for all your help. I'm very happy to have the coolest doorbell in the neighborhood”!

Seth Levine
Boulder,  CO
 

“Scott-The doorbell arrived last week...  I like your product a lot.  We're looking forward to trying some of our own music when we are feeling adventurous someday”.

Best regards,

Ken Nilsestuen
Akron, OH
 

Hi Mike and Scott,

My doorbell is hanging on the wall and the features all work... So, thank you much for your personal help. My wife and I are enjoying the doorbell already. Nice job you guys.

 

Pat Murphy
Southern, CA

 

 

 

Document Library

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Music Library

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About Us

Predominance, LLC was formed in 2009 as a holding company for technologies developed over the years for use in both residential and commercial markets. More..


Contact Us

Phone: 973-886-7560
Predominance, LLC
270 Sparta Ave Suite 104
Sparta, NJ 07871

E-mail: sales@tommyknockerdoorbell.com
E-mail: Support

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