密みっ閉ぺい型がた

noun which may take the genitive case particle 'no', noun

sealed type; enclosed; hermetic; closed-back

Used for equipment or containers that are sealed, enclosed, or airtight. Common in technical contexts such as headphones, speakers, and packaging.

• この密みっ閉ぺい型がたヘッドホンは音おと漏もれが少すくない。

  These closed-back headphones have little sound leakage.

• 密みっ閉ぺい型がたの容よう器きで保ほ存ぞんしてください。

  Please store it in a sealed container.