The logitech dual wireless headset h820e combines enterprisequality wireless audio with superior design elements making it logitechrsquos best wireless headset interruptions are minimized with a distinct in call led light and muting is intuitive thanks to the on boom mute button and led mute indicator light product description logitech dual wireless headset h820e device type wireless headset headphones type headphones binaural microphone tx type bi directional ecm frequency r