Delivers crystal clear sound whenever and wherever you work. Bang & Olufsen signature sound. Advanced Noise Cancelling. Professional-grade call quality with Virtual Boom Arm. Soft memory foam ear cushions and ergonomic design. Supports platforms like Teams Zoom and UC. Use the included USB dongle for instantaneous sound connectivity. 40mm Electro-dynamic driver with neodymium magnets. Up to 47 hours of listening with ANC. Built-in 1200mAh Lithium-ion battery. Includes: USB-A Dongle. Charging cable. 3.5mm Audio cable. Travel case.