Plantronics CS540 HL10 Wireless Headset Bundle Package (84693-11) features the lightest office wireless headset on the market, a new streamlined design and improved performance. Go mobile and multi-task up to 350 feet from your desk with answer, end and mute controls at your fingertips, Audio controls volume/mute at your fingertips, Noise-canceling microphone filters out background noise, Conference in up to three additional CS540 or Savi headsets for enhanced collaboration . And no matter what your preference, with three wearing choices there's one to match your personal style. 9 hours of talk time.