15 mm speaker driver15 mm speaker driver optimises wearing comfortSmall enough for optimum wearing comfort and big enough to deliver crisp， non-distorted sound， the 15 mm speaker driver is an ideal size for listening enjoyment<br><br><b>■返品について</b><br><b>返品不可（商品に不備・欠陥がある場合を除く）。</b><br><br>その他、ショップ情報欄をご確認ください。