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Amazon.com: EPOS | SENNHEISER Adapt 660 (1000200) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, ANC Over-Ear Headset | for Desk/Cell Phone & Softphone | Teams Certified (Black), 207 mm x 65 mm x 181 mm : Electronics
Epos/Sennheiser Adapt 660 Review: On Par With Sony and Bose | WIRED
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Amazon.com: EPOS | SENNHEISER Adapt 660 (1000200) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, ANC Over-Ear Headset | for Desk/Cell Phone & Softphone | Teams Certified (Black), 207 mm x 65 mm x 181 mm : Electronics
EPOS ADAPT 660 Review - My current favourite, best ANC headphones