公开(公告)号：US09020181B2

公开(公告)日：2015-04-28

申请号：US13914131

申请日：2013-06-10

Applicant: Sony Corporation

Inventor： Tomohiro Matsuo ,  Takashi Ohta ,  Koji Nageno ,  Tomohiro Ito

IPC: H04R25/00 ,  H04R1/10 ,  H04R1/34 ,  H04R29/00

CPC classification number: H04R1/1016 ,  H04R1/02 ,  H04R1/10 ,  H04R1/1008 ,  H04R1/1033 ,  H04R1/1058 ,  H04R1/1066 ,  H04R1/1091 ,  H04R1/2807 ,  H04R1/34 ,  H04R1/345 ,  H04R29/001 ,  H04R2499/11

Abstract: An earphone device includes a housing having a driver unit, and a sound guide tube mounted on a front surface of the housing to protrude from the front surface, in which the sound guide tube is disposed at a position deviated from a center position of the housing.