The Jabra Evolve 65 SE Link380A MS Stereo Headset with Charging Stand has noise cancellation to eliminate high-frequency noise, such as human voices. The Evolve 65 will give you up to 14 hours of talk time on a full charge. A red light is activated automatically when on a call or manually activated by the user is busy to act as a do not disturb signal. The headset has a wireless Bluetooth range of up to 100'.