Brand new noise cancelling headset - headphones and microphone. Includes carrying case. Taken out of box once, but never used. For business professionals who require a consistently excellent hands-free communication solution HD Sound: Powered by a neodynium speaker for legendary Sennheiser HD sound to ensure a clearer and more natural voice & audio experience Easy Disconnect: Simple, quick release mechanism made to withstand the repetitive plugging and unplugging of shift changes Noise-Cancelling Technology: Filters out all unwanted background noise for crystal-clear conversations on calls State-of-the-Art Materials: Stainless steel hinges, brushed aluminum parts, & Vectran reinforced cables defend your headset against everyday use In-Line Call Control Unit: Answer or end your calls, control the volume, mute your mic and redial calls - all directly from your headset All-Day Comfort: Large leatherette ear-pads and unibody headband construction are built for maximum strength at stress points to ensure a comfortable experience ActiveGard Technology: Ensures protection against acoustic injury caused by sudden sound bursts on the line Easy Transporation: With foldable ear cups and the accompanying carrying case, bring your business headset wherever work takes you.