Assertion: electric toothbrush | /r/HasAspect | built-in timer
Facets:
Source sentences:
text: If you’re never sure how long you clean your teeth for and if you’re doing it for long enough, look for an electric toothbrush that comes with a built-in timer.
text: Many electric toothbrushes come with built-in timers that stop once you’ve hit the magic two-minute mark or vibrate after 30 seconds to remind you to move to a different part of your mouth.
text: Most electric toothbrushes come with a built-in timer that vibrates or beeps when the two minutes are up, and this goes a long way towards encouraging people to brush for the proper amount of time.