Assertion: headphone's battery life | /r/HasProperty | 7 hours
Facets:
Source sentences:
text: Battery life: 7 hours (40 with charging case)
text: No Battery life: Up to 7 hours
text: | Battery life: 7 hours (28 hours with charging case)
text: /A | Battery life: 7 hours (on board) 28 hours (charging case)
text: | Battery life: 7 hours (28 hours with charging case)