Optimized for major softphone and UC brands, 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.