Sennheiser MB660 UC/MS Noise-Cancelling Full-Size Bluetooth Headset with NFCSennheiser MB 660 UC MS is a wireless, Skype for Business Certified, adaptive ANC headset designed for knowledge workers demanding business-grade communication & premium Sennheiser sound quality for maximum productivity in open offices. Noise Gard™ hybrid adaptive ANCBy constantly monitoring your background environment for noise, Sennheiser’s Noise Gard™ hybrid adaptive ANC technology seamlessly adjusts the level of noise reduction in your headset. This unique technology enables you to take control of your sound environment, so you can have a productive, disruption-free workspace.UC certified business-grade communication Business-grade communication voice clarity is key to success in every organisation. The MB 660 wireless & wired solution in one deliver a certified, business-grade communication experience, whichever your UC environment might be. Sennheiser signature sound Create your own sound with a choice of sound effect modes, to get the best personalized sound for speech, music & entertainment. The MB 660 delivers stereo audio, & CD-quality streaming with apt X® in Sennheiser’s renowned high-quality, for your ultimate sound experience. Reclaim your office We haven’t compromised on a single detail with the MB 660 series. In addition to taking noise cancellation to the next level & delivering the renowned Sennheiser signature sound, the MB 660 Series has been designed to be the ultimate business tool for maximising your productivity.