Bose QuietComfort Earbuds II Noise-Canceling True Wireless In-Ear Headphones (Triple Black) - Manual (Page 22)

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POWER
POWER OFF
1. Place both earbuds in the charging case.
The earbud status lights glow according to the charging status (see page 35).
2. Close the case.
The earbuds power off.
STANDBY
Standby conserves the earbud battery when the earbuds are out of the case and not
in use. The earbuds switch to Standby when you remove both earbuds from your ears
for 20 minutes.
To wake the earbuds, insert both earbuds in your ears.