The Sennheiser Culture Series business headsets are specially designed to be a deployment-friendly solution for enterprises transitioning from traditional telephone systems to Unified Communications solutions. To ease the transition from traditional communication systems to Unified Communications, Sennhesier continues to offer high quality, easy to use tools that provide a richer and more rewarding experience for everyone involved. All Culture headsets come equipped with Sennheiser Voice Clarity, noise-cancelling microphones, USB connectors, HD sound, and much more, to supply users with all the tools they'll need for a premium business communication experience. With plug and play functionality, and a 2-year warranty, purchasing a Culture Business Headsets only comes down to which model fits your needs the most. Choosing the right Culture: SC 30 USB ML For users who prefer to have one ear uncovered, this single-sided headset offers quality sound and plug and play performance with Skype for Business. SC 30 USB CTRL For users who prefer to have one ear uncovered, this single-sided headset offers quality sound and plug and play performance with the leading Unified Communications solutions. SC 60 USB ML For users who prefer to have two ear pads, this double-sided headset offers quality sound and plug and play performance with Skype for Business. SC 60 USB CTRL For users who prefer to have two ear pads, this double-sided headset offers quality sound and plug and play performance with the leading global Unified Communications solutions.