音のいいヘッドホン イヤホンの見分け方を原理から解説

Explain the difference between open, closed, and semi-open from the principle. Covers how to identify products with good sound, tips for auditioning, and aging. You can see everything about headphone earphones in this one video.

• #howto_style
• #
• #
• #ba
• #
• #