Plantronics 75859-01 Voyager 520 Bluetooth Headset with Wall Charger and Desktop Cradle Only, Noise-canceling Microphone and Windscreen, Up to 33 Feet (10 Meters) Range, Up to 8 Hours Talk Time Noise-canceling mic and windscreen cut down distracting background and wind noise Multipoint technology pairs headset with two Bluetooth devices Innovative earbud design offers exceptional sound and comfort with a secure fit Universally compatible with Bluetooth-enabled phones Up to 8 Hours Talk Time, Up to 180 HoursStandby Time, Up to 2 Hours Charge Time