Featuring a unique Sound Enhancement System (SES), Encore headset users have the option, at the flick of a switch on the headset, to listen to the caller's normal telephone voice or to adjust the sound for a fuller, richer tone. Encore headsets provide a perfect acoustical fit, adjustable headband, and soft ear cushions for optimum comfort, stability, and fit. Yokeless binaural cable design SES tone control switch Lightweight (2.6oz/74gm) Supports SoundGuard Plus and Call Clarity technologies for superior sound Clear, adjustable voice tube Click-stop headband and turret Adjustable "swing-away" microphone boom 10' cable with Quick Disconnect option Headband pad option Adjustable clothing clip H101: Encore Binaural Headset Encore H101 Binaural Headset Binaural Headset Plantronics Call Clarity SoundGuard H101: Encore Binaural Headset EZ-NetTools EZ-NetTools specializes in providing professional custom web site design and ecommerce services that you can easily maintain.