Noise-cancelling earbuds
Bose's standard noise-cancelling earbuds, a step below the QuietComfort Ultra Earbuds (2nd Gen), with longer battery life but fewer sound features.
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Noise cancellation
It blocks most low and mid-range noise, slightly less than the QuietComfort Ultra Earbuds (2nd Gen). Voices are turned down rather than silenced.
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8.5 hours per charge
Each charge lasts up to 8.5 hours, 2.5 hours longer than the QuietComfort Ultra Earbuds (2nd Gen).
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No Immersive Audio or CustomTune
It lacks Immersive Audio, Bose's spatial sound, and CustomTune, which calibrates sound to your ears. The QuietComfort Ultra Earbuds (2nd Gen) have both.