The AC-840 Cyber Acoustics Computer Mono USB Headset comes with Direct Noise Canceling Microphone Technology version 4, which ensures very high sound clarity. With inline mute and volume control, you can easily and quickly adjust the sound, so it's always just how you want it. This Cyber Acoustics USB headset has a leatherette ear pad and adjustable boom arm so that you can leave it on comfortably for hours as you take calls, play games and more. In fact, the open design allows you to wear this headset in either direction, as the mic can flip all the way around for a headset that changes to suit you. The flexible boom microphone on this Cyber Acoustics USB headset can be adjusted so your friends and clients can clearly hear you and flips up when you aren't using it. With one speaker, this monoaural headset lets you stay aware of what's happening around you while you're wearing it, making it a smart choice for office use.