HD 660 S 2 Refurbished | In-Ear, Noise-Canceling, Wireless, Bluetooth, Music; Entertainment, Travel, Sports - Sennheiser Discover True Sound
![Sennheiser HD 660 S [OpenBox - Refurbish]](https://cdn11.bigcommerce.com/s-kpvfihx4zs/images/stencil/1280x1280/products/262/789/6601__06685.1625248957.png?c=1 "Sennheiser HD 660 S [OpenBox - Refurbish]")
Sennheiser HD 660 S [OpenBox - Refurbish]
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HD 660 S 2 | In-Ear, Noise-Canceling, Wireless, Bluetooth, Music; Entertainment, Travel, Sports - Sennheiser Discover True Sound
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