Dual connectivity Smart sensor technology Unmatched sound clarity Enhanced mobility Corded reliability meets wireless flexibility. The Black wire 700 Series is the versatile UC headset that offers high-quality PC audio and seamless Bluetooth connectivity to mobile phones and tablets. Enjoy unmatched audio quality, industry-first Smart sensor technology that automatically answers a Call when you put on the headset, and a detachable cable for taking your mobile calls throughout the office.
Excellent headsets. We use these at work where we have recently migrated from Cisco to Microsoft Lync. The "M" series works seamlessly with Lync and the audio quality is top notch. I tested a number of wireless and wired sets from Plantronics and Jabbra and these sets had the right price point for the features and quality. We issued a mix of these and the single ear 710-M versions to approx 275 users over a year ago and have not run into any issues with either set.We do de..