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Compare Sennheiser HD 660 S Apogee vs. Sony WI-SP510

This is a side-by-side comparison of the specs of the HD 660 S Apogee vs. the WI-SP510. Differences are highlighted in yellow.
Item HD 660 S Apogee WI-SP510
Item image Item image
Impedence 150Ω [x]
Wireless? Yes [x]
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