- USB-C B600-C adapter included- Active noise cancelling technology on the speakers blocking out unwanted background noise so you can focus- UC standard version compatible with softphones from Avaya Cisco IBM Skype and more- Wireless stereo headset across multiple applications on Bluetooth-enabled desk phones laptops cell phones- Up to 12 hours talk time; 15 hours of music streaming when fully charged- Long Range Bluetooth - up to 150 feet of wireless range when BT600-C adapter is used.- Smart sensors know when the headset is on or off- Easy controls to answer/end calls control volume and mute; track forward/back for music playback- Caller name announcement informs you who is calling; no need to look at your mobile phone- Smart microphone boom: wear boom on either side and maintain R/L stereo performance and locations of volume/track buttons- Online busy indicator- Charge headset in an elegant desktop stand (included)- Open microphone button allows you to hear your surroundings when you need to Enhanced digital signal processing (DSP) provides more natural sound- Wideband audio with noise canceling- Leatherette ear cushions wrapped around pillow-soft memory foam- Easily take the headset on the go with folding ear cushions and included carrying case