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Montgomery County-Norristown
Public Library

1001 Powell Street • Norristown, PA 19401 • (610) 278-5100

Cone of Silence

The Cone of Silence
This revolutionary product is designed to deliver high quality stereo sound to patrons without disturbing others in the library. The patented design delivers a column of sound directly below the sphere providing crisp clear stereo sound. Outside the column, sound level drops 80% so that adjacent patrons are not bothered by the audio content.