Free your hands from the task of holding a telephone handset. Watch your productivity soar by eliminating the need to cradle the phone on your shoulder. The H81N has a noise canceling microphone which helps to keep your calls crisp and clear by eliminating unwanted background noise. The H81N requires a lower connector cord or adapter base to make the connection to your office desk phone. These accessories are sold separately. Comes with a full 1-year Headset Advisor advance replacement warranty. This assures you that your purchase is backed by a company with over two decades of experience providing headsets to businesses. Contact us today if you have any questions and we'll be glad to help.