| 摘要 |
PURPOSE:To attain further sound quality improvement by adopting a structure such that an ear mount part and a speaker accommodate part are provided separately and a sound guide pipe is linked externally from the ear mount. CONSTITUTION:An ear mount part 3 and a speaker accommodate part 2 are provided separately and a sound guide pipe 6 having an inertance component is linked externally and plural small holes are formed to the opening 7 formed to the ear mount part A. Thus, the speaker accommodate part 2 made of various types of materials having various volumes is combined to the ear mount part 3. Thus, a problem of unsharpened sound quality due to rise of f0 in a closed type headphone is avoided. |
