Wireless headset with USB Type-C dongle Sleek, contemporary design and bendable boom arm that folds discreetly into the headband Noise-cancelling microphone for optimal voice clarity Enhanced audio protection prevents listening fatigue, average 85 dB over an 8-hour work day ActiveGard technology protects users against acoustic injury caused by sudden sound burst on the line UC-optimised and certified for Microsoft Teams Includes: BTD 800 USB-C dongle; USB cable with USB-C connector; pouch bag; compliance sheet; quick guide; safety guide