![Sennheiser MB 660 UC (507092) - Dual-Connectivity, Wireless, Bluetooth, Foldable, Adaptive ANC Over-Ear Headset | For Desk/Mobile Phone & Softphone/PC Connection | UC Platform Compatibility (Black) Sennheiser MB 660 UC (507092) - Dual-Connectivity, Wireless, Bluetooth, Foldable, Adaptive ANC Over-Ear Headset | For Desk/Mobile Phone & Softphone/PC Connection | UC Platform Compatibility (Black)](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/81NaFRDL2wL._AC_UF894,1000_QL80_.jpg)
Sennheiser MB 660 UC (507092) - Dual-Connectivity, Wireless, Bluetooth, Foldable, Adaptive ANC Over-Ear Headset | For Desk/Mobile Phone & Softphone/PC Connection | UC Platform Compatibility (Black)
![Sennheiser MB 660 MS (507093) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, Adaptive ANC Over-Ear Headset | For Desk/Cell Phone & Softphone/PC Connection | Skype for Business Certified (Black) Sennheiser MB 660 MS (507093) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, Adaptive ANC Over-Ear Headset | For Desk/Cell Phone & Softphone/PC Connection | Skype for Business Certified (Black)](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/81X8CQISJ-L.jpg)
Sennheiser MB 660 MS (507093) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, Adaptive ANC Over-Ear Headset | For Desk/Cell Phone & Softphone/PC Connection | Skype for Business Certified (Black)
![Sennheiser MB 660 MS (507093) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, Adaptive ANC Over-Ear Headset | For Desk/Cell Phone & Softphone/PC Connection | Skype for Business Certified (Black) Sennheiser MB 660 MS (507093) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, Adaptive ANC Over-Ear Headset | For Desk/Cell Phone & Softphone/PC Connection | Skype for Business Certified (Black)](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71ey0AiPDfL.jpg)
Sennheiser MB 660 MS (507093) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, Adaptive ANC Over-Ear Headset | For Desk/Cell Phone & Softphone/PC Connection | Skype for Business Certified (Black)
![Sennheiser MB 660 MS (507093) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, Adaptive ANC Over-Ear Headset | For Desk/Cell Phone & Softphone/PC Connection | Skype for Business Certified (Black) Sennheiser MB 660 MS (507093) - Dual-Sided, Dual-Connectivity, Wireless, Bluetooth, Adaptive ANC Over-Ear Headset | For Desk/Cell Phone & Softphone/PC Connection | Skype for Business Certified (Black)](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/81K9C2saIAL.jpg)