TheSC 660 USB ML is a premium stereo USB binaural (two-way) headset certified for use with Skype for Business. It is specifically designed for quality-conscious professionals in contact center and office environments who require outstanding sound performance. TheSC 660 USB ML with Sennheiser HD-quality voice reproduction and ultra noise-canceling microphone optimizes speech intelligibility in noisy contact center and office environments. Equipped with in-line call control, theSC 660 USB ML offers seamless call control as well as a wide range of features and convenience when connected to Skype for Business. Stainless steel and brushed aluminum elements combine with the one-piece headband construction to create an elegant, high-end design that further enhances the rugged construction designed for durability. Key product features include sound optimization features for clear voice reproduction and leatherette ear cushions for powerful sound and comfort. The metal-reinforced headband with numbered adjustment positions is easy to adjust and fits perfectly every time. With its ActiveGard hearing protection, theSC 660 USB ML is the perfect companion for users in busy unified communications environments who require maximum call handling flexibility and robust high-end performance.