Bose QUIETCOMFORT ULTRA - Charging Time; Hear the Battery Level

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ENG
BATTERY
Charging time
Allow up to 3 hours to fully charge the headphones.
1
A full charge powers the
headphones for up to 24 hours with immersive audio set to O (up to 18 hours with
immersive audio set to On).
2
When the headphone baery level is low, a 15-minute charge powers the headphones
for up to 2.5 hours with immersive audio set to O (up to 2 hours with immersive
audio set to On).
3
Hear the battery level
Each time you power on the headphones, a voice prompt announces the baery level.
When the headphone baery is low, you hear “Baery low.”
NOTE: To visually check the baery, see the status light l ocated on the left earcup.
For more information, see page 38.
TIP: You can also hear the baery level using a shortcut. The baery level must be set
as a shortcut using the Bose Music app (see page 19).
1 Testing conducted by Bose in June 2023 using production-representative Bose QuietComfort Ultra Headphones. Quick
charge testing consisted of charging headphones with baery depleted (to the point of no audio playback) for 15 minutes,
then resuming audio playback with volume set to playback loudness of 75dBSPL, 3-band EQ set to zero, in Quiet Mode
(full noise cancellation) with Immersive Audio switched o, resulting in up to 2.5 hours playback time before baery
depletion. With Immersive Audio on, playback time was up to 2 hours before baery depletion. Time to achieve fully charged
headphones was determined by charging headphones with baery depleted (to the point of no audio playback) to 100%
baery charge. Baery life varies based on seings and usage.
2 Testing conducted by Bose in June 2023 using production-representative Bose QuietComfort Ultra Headphones and a variety
of music tracks using A2DP Bluetooth audio streaming. Volume set to playback loudness of 75dBSPL, 3-band EQ set to zero,
in Quiet Mode (full noise cancellation). With Immersive Audio o, playback time was up to 24 hours before baery depletion.
With Immersive Audio on, playback time was up to 18 hours before baery depletion. Baery life varies based on seings
and usage.
3 See 1.