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Compare Bose QuietComfort 20i vs. Sennheiser RS 120 II

This is a side-by-side comparison of the specs of the QuietComfort 20i vs. the RS 120 II. Differences are highlighted in yellow.
Item QuietComfort 20i RS 120 II
Item image Item image
Active noise cancellation? Yes [x]
Impedence 24Ω [x]
Battery life 16h [x]
Carrying case? Yes [x]
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