Assertion: headphone | /r/HasProperty | special adapter attachment
Facets:
Source sentences:
text: The in-ear headphones include a special adapter attachment, which run on AAA batteries for up to 60 hours, that achieves the pair's noise-cancelling feature.
text: The in-ear headphones include a special adapter attachment, which run on AAA batteries for up to 60 hours, that achieves the pair's noise-cancelling feature.