Plantronics Voyager Focus UC B825-M Microsoft Skype for Business stereo Bluetooth headset with active noise cancelling. This pack does not include the desktop charger, only charging cable. It connects wirelessly to your computer using the included USB adapter. Wireless range up to 150 feet. The Plantronics Voyager Focus B825-M is equipped with both active noise canceling speakers. controls, three precision-tuned microphones and high definition HD stereo audio for music. FeaturesVoyager Focus UC HeadsetCertified for Microsoft Skype for Business (formerly MS Lync)Active noise cancelling dual speakersBattery time: Up to 12 hours talk timeand#59; 15 hours of music streamingClass 1 Bluetooth USB dongle with adaptive power (150 ft range from PC USB adapter)Smart sensors know when the headset is on or offControls on the headset allowing answer/end calls and volumeOnline busy indicatorLeatherette ear cushionsFolding ear cushions and included carrying case for travelNo desktop charging stand, charging cable onlySpecificationsWeight: 0.55 lbs