Radio and infrared receiving collapsible hearing device

摘要

An assistive listening device has a housing enclosing both infrared radiation and FM radio receivers and audio amplifier for receiving audio information transmitted to the hearing impaired audience in an auditorium by either infrared or radio radiation. The received radiation is converted to an amplified electrical audio signal. The signal is converted to audible sound by two earphones at the distal ends of two extendable arms. The arms are attached at their proximal ends to the housing. The arms have two configurations, a compact configuration in which the earphones are retracted to a position against the housing for storage or transport and an extended configuration in which the earphones are at a distance from the housing and spaced apart less than the distance between a user's ears. The arms may have one or more joints for folding compactly around the edge of the housing.