The Plantronics SupraPlus Wireless CS361N with Noise-Canceling  was designed specifically for contact center supervisors and office professionals with phone-intensive responsibilities who demand hands-free mobility along with Plantronics supreme comfort and superior audio quality. The SupraPlus Wireless is built on digitally-encrypted DECT technology and combines the audio clarity of traditional corded technology with the mobility of wireless - so employees can continue digitally secure phone conversations while moving about the office or contact center.