Description Features • Line of sight range up to 590 feet/180 meters • Up to 7 hours talk time included swappable battery pack allows for unlimited talk time • Ensure that sensitive conversations stay private — headsets are DECT security certified by the DECT forum using the latest security standards • Tune out office noise and nearby conversations with noise canceling microphone plus close conversation limiting • Get crystal clear audio with the latest DECT technology supports wideband audio without impacting user density