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Compare Bose QC20 for Android vs. Sennheiser HD 660S

This is a side-by-side comparison of the specs of the QC20 for Android vs. the HD 660S. Differences are highlighted in yellow.
Item QC20 for Android HD 660S
Item image Item image
Active noise cancellation? Yes [x]
Impedence 150Ω [x]
Battery life 16h [x]
Carrying case? Yes [x]
NFC? No [x]
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