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Headphones

Compare Sennheiser HD 660S vs. Sony DR-BT21G

This is a side-by-side comparison of the specs of the HD 660S vs. the DR-BT21G. Differences are highlighted in yellow.
Item HD 660S DR-BT21G
Item image Item image
Weight 0.065kg [x]
Colour Black [x]
Impedence 150Ω [x] 11Ω [x]
Charging time 150min [x]
Signal range 10m [x]
Bluetooth version 2 [x]
Folding? Yes [x]
Wireless? Yes [x]
Magnet Neodymium [x]
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