With Sennheiser PRESENCE, you get the best of both worlds: You get the benefit of superb sound and your listener gets to hear you clearly – no matter where you’re calling from. With its best-in-class 3 microphone system, and advanced noise cancelling features, PRESENCE consistently delivers exceptional sound in different environments – especially for your listener. From noisy office, through a windy parking lot, to the relative quiet of your car, PRESENCE takes background noise in its stride and adapts seamlessly to give the consistent listening experience that professional communication demands. With its extended talk-time and comfort enhancing choice of wearing styles, this iconic headset is designed to actively help you and your listener focus on your conversation in the office or on the road. Sennheiser patented ActiveGard technology provides hearing protection against acoustic shock.Choosing the right Presence:Presence BusinessThis headset is designed for those who simply need an excellent communication solution in the office, in the car, and outdoors for mobile devicesPresence UCThis headset is designed for professionals who require a consistently excellent communication solution for all Major UC platforms (Cisco, Avaya, IBM, etc.)Presence UC MLThis headset is designed for professionals using Skype for Business, who require a consistently excellent communication solutionSennheiser offers a 2-year warranty on all Headsets (including battery).