Sennheiser DeskMate Dual-Ear Corded Office Telephone Headset with Noise-Canceling Microphone.

The DeskMate HSC 260 offers an upgrade in sound quality and comfort over all previous models. PERFECT FIT. The DeskMate is the most comfortable corded office headset in the world. Its adjustable headband, leatherette ear cushion and solid construction combine to make it the most comfortable headset you'll ever wear NOISE-CANCELLING MICROPHONE. With the DeskMate you can rest assured knowing that your callers hear you and not what's going on around you. SLEEK, LIGHTWEIGHT, & MODERN DESIGN. At 2.4 ounces, the DeskMate won't strain your neck. The DeskMate improves your posture while increasing productivity. COMPATIBILITY. The DeskMate is guaranteed to be compatible with 98% of office phones. Requires separate connector cord or amp. Sennheiser CSTD-01 cord http://www.amazon.com/dp/B0007INITA will connect to most corded office telephones like Avaya, Shoretel, Polycom. http://www.amazon.com/dp/B00DPOJ428 will connect to Cisco IP phones and the Plantronics M22 amp. WARRANTY. 4-year warranty.