Predominance LLC

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Predominance LLC was formed in 2009 as a holding company for technologies developed over the years for

use in both residential and commercial markets.

The holdings include both domestic and international patents. The founders of Predominance are entrepreneurs who saw the
commercial potential in revolutionizing the current solenoid style doorbell. The product created from this  vision became the
Tommyknocker Digital Doorbell. This doorbell, which now incorporates USB technology, uploads MP3 files and  plays them back
with high quality sonic character through a high fidelity amplification system coupled with a full range speaker.

The  development of doorbell has seen many versions and much revision over a 20 year period to arrive at the current
design. Future plans include models that will address stereo reproduction, wireless technologies, decorator versions  for existing
and new units as well as  branded designs for club and other organization use.

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