In-ear device with selectable frequency response
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United States of America Patent
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Dec 2, 2014
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app pub date -
Dec 27, 2010
filing date -
Dec 24, 2009
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Abstract
An in-ear device comprises a main body for placement in the outer ear of a wearer and has at least two derivative canals each containing a filtering medium differing from one another in terms of their frequency suppression capabilities, and a preferably rotatable knob enabling selection of the respective filtering canal without the need for removal of the device from the ear.
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