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  • Devices incorporating one or two ear-worn/inserted loudspeakers (i.e., devices intended to convert electrical signals from audio equipment into sound waves) designed to allow improved and/or private listening by the user. Earphone loudspeakers are enclosed in housings that may be inserted in the ear canal or rest on top of or surround the outer ear. Earphones incorporating two loudspeakers (i.e., one for each ear) may be connected by a flexible head strap. Earphones may be connected to the transmitting audio device via a wire or wirelessly.
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