EARPHONE FOR SOLVING A PROBLEM DUE TO A NARROW DOMAIN OF AN OUTPUT AUDIO FREQUENCY IN A SINGLE SPEAKER UNIT

摘要

PURPOSE: An earphone is provided to obtain a uniform frequency response as to all frequencies by broadening a whole range of an output audio frequency generated through two speaker units.;CONSTITUTION: A first speaker unit(130) and a second speaker unit(140) are arranged in an inner side of an earphone(100). The first speaker unit and the second speaker unit have different output frequencies. A total output audio frequency in the earphone is the total of the output audio frequencies in the first speaker unit and the second speaker unit. A wider range of the output audio frequencies and a smooth frequency response curve are easily obtained. The first speaker unit and the second speaker unit are fixed by a bracket(120).;COPYRIGHT KIPO 2012