Bose QuietComfort Earbuds II
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The Bose QuietComfort Earbuds II integrate advanced CustomTune calibration to tailor both sound and active noise cancellation (ANC) to the unique acoustic properties of your ear canals. They are rated IPX4 for resistance to sweat and splashes, feature Bluetooth 5.3 connectivity and support SBC/AAC codecs. Battery life is up to 6 hours per charge in the earbuds, with additional charges available via the case; a quick 20‑minute charge provides roughly 2 hours of playback. With four microphones in each earbud, they offer enhanced call clarity and effective ambient noise rejection even in busy environments. The sound profile leans toward impactful bass with crisp vocals; the app offers a 3‑band EQ for custom tuning.