数量は20～30個と思いますが、まだ全てのヘッドセットを確認していませんので、メインユニットを返品する時にその都度一緒に送ります。
他にお客様の意見として、スピーカーが厚いため耳に当たって痛いという意見も多くいただいていますので、こちらも改善を検討してください。
I think it will be 20 to 30 pcs. As I have not reviewed all of the headsets yet, I will include only those reviewd by the time when I return the main units.
Among the reviews from the customers, many claimed that the speakers were so thick that they touhced their ears to hurt them. I would request you to consider modification on this part as well.
