Bose QuietComfort Earbuds II Noise-Canceling True Wireless In-Ear Headphones (Triple Black) - Manual (Page 29)

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NOISE CANCELLATION
USE NOISE CANCELLATION ONLY
Clear away noisy distractions without audio. Focus on what matters most — your work
or whatever your passion.
1. Press and hold the Bluetooth button l in the charging case until you hear
“ Bluetooth off.”
Your mobile device disconnects, and all audio stops playing.
2. Double-tap the left earbud to set your preferred noise cancelling mode
(see page 27).
NOTE: To reconnect your mobile device, select the earbuds from the Bluetooth list on
your device.