Crystal-clear sound for outstanding calls and music, with world-class speakers and HD voice Reduce noise and interruptions with Active Noise Cancellation and integrated busylight The freedom to move with dual Bluetooth connectivity to two devices, and a range of 100ft/30m from your connected device All-day comfort from leather-feel ear cushions and on-the-ear design Works with all leading Unified Communication platforms, and is optimized for Skype for Business, Cisco, and more