² Testing Carried out by Bose in June 2024 by inserting production-representative Bose QuietComfort Earbuds with battery depleted (to The purpose of no audio playback) into a fully charged Bose QuietComfort Earbuds charging chase and charging earbuds to 100%, then resuming audio playback until battery depletion. Screening resulted in three https://medium.com/@usama276181/unleash-the-sound-the-ultimate-bose-quietcomfort-earbuds-review-youve-been-waiting-for-db4cc4702b61