Certified for Skype for Business, the headsets are designed for UC business professionals who demand wireless communication freedom, brilliant sound quality, and exceptional wearing comfort. Seamlessly switch calls between 2 Bluetooth® devices (for example, Bluetooth®-enabled desk phone and mobile calls) from a single headset for maximum call handling flexibility. MB Pro is crafted with high-end materials to Sennheiser’s high standards to ensure maximum durability and design quality.