ADD 220 Quantum Pro Noise Canceling Binuaral The Quantum Pro Noise Canceling headset is sleek, stylish and right at home in the most sophisticated of offices. Better still, it’s as hardworking as it is good looking with a range of state-of-the-art features and a reputation for durability. The simple push-button ADDLOCK makes changing from headband to earhook a convenient one-handed operation. A 270 degree adjustable microphone boom allows for easy flipping from ear to ear while its super flexible rubber design ensures a perfect fit. All-day comfort is further complemented by the headset’s exceptional lightness and a self-aligning, floating earpiece that sits easily on the ear without pressing against the user’s head. Sound quality is crisp, clear and natural thanks to the use of a broader bandwidth for the speaker combined with an innovative speaker cabinet. While a bidirectional microphone provides an exceptionally high signal-to-noise ratio to acoustically transduce the user’s voice. Product Code ADD-200ND