Bose QuietComfort Ultra Set Owners Guide - Page 36

Charging time, Hear the battery level, When the headphone ba°ery level is low

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B AT T E R Y 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 Off (up to 18 hours with immersive audio set to On).2 When the headphone battery level is low, a 15-minute charge powers the headphones for up to 2.5 hours with immersive audio set to Off (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 battery level. When the headphone battery is low, you hear "Battery low." NOTE: To visually check the battery, see the status light ­l­ocated on the left earcup. For more information, see page 36. TIP: You can also hear the battery level using a shortcut. The battery level must be set as a shortcut using the Bose 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 battery 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 off, resulting in up to 2.5 hours playback time before battery ­depletion. With Immersive Audio on, playback time was up to 2 hours before battery depletion. Time to achieve fully charged ­headphones was determined by charging headphones with battery depleted (to the point of no audio playback) to 100% battery charge. Battery life varies based on settings 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 off, playback time was up to 24 hours before battery depletion. With Immersive Audio on, playback time was up to 18 hours before battery depletion. Battery life varies based on settings and usage. 3 See 1. | 3 6 E N G

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36
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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 Off (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 Off (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 located on the left earcup.
For more information, see page 36.
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 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 off, 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 off, 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.