Bose advertises that the headphones use a technology called "CustomTune Audio" to adapt their sound to the ear canal in which they are placed. In everyday use, you will notice that they emit a short orchestral sound when you put them in your ears. The internal microphones use this tone to calibrate the sound...
Bose QuietComfort Earbuds II
ANC, 6 h, WirelessDelivered between Mon, 5.5. and Wed, 7.5.
More than 10 items in stock at third-party supplier
More than 10 items in stock at third-party supplier
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Product details
30-day right of returnReturn policy
24 Months Bring-in WarrantyWarranty provisions
3 additional offers