| 摘要 |
PROBLEM TO BE SOLVED: To provide an earphone capable of effectively preventing the deterioration of sound quality of reproduction sound by suppressing the attenuation of sound in a high frequency band.SOLUTION: Each piece of an earphone includes: a housing incorporating a first sounder in charge of a high sound band and a second sounder in charge of the other band; a stem that is extended from the housing and where a through-hole is formed inside; a sound derivation hole formation member having at the center, a first sound derivation hole for a high sound band that derives the reproduction sound of the first sounder, and forming a second sound derivation hole for deriving the reproduction sound of the second sounder with the inner peripheral surface of the through-hole while being inserted to the through-hole of the stem; and an ear chip attached to the distal end of the stem. |
