Sennheiser DeskMate Dual-Ear Corded Office Telephone Headset with Noise-Canceling Microphone. The DeskMate is the most comfortable corded office headset in the world The perfect fit  the adjustable headband will give you a great fit every time Quick Disconnect cable allows you to quickly disconnect from your phone or amplifier while still wearing your headset Features a noise-canceling microphone  make sure your callers hear you and not what's going on around you 4-year full-replacement warranty