インナーイヤー式
- 1earbud-type (headphones; i.e. not sealing the ear canal) ; open-fit (earbuds) ; intra-concha ; flat-head Translated by Jiyomi
nouns which may take the genitive case particle 'no' · noun (common) (futsuumeishi)
JMdict entry 2868426. Source and licence.