AC-201Stereo HeadsetSlick, comfortable, and awesome quality, the AC-201 analog stereo headset is a great choice for anyone doing Voice Over iP and gaming. Bring your ears to attention with the AC-201 s 30mm dynamic drivers. The adjustable, over the head design fits comfortably on any head size, and the flexible boom mic s 180-degree rotation gets the job done, no matter your preference. Comfort is no issue with the AC-201 s soft, leatherette ear pads. Listen in style.- Voice recognition certified- DNCT4: Direct Noise Canceling Microphone Technology- 180 degree microphone- Leatherette ear pads- Adjustable boom arm- Ambidextrous design (wear on right or left side) SpecificationsFrequency:Headset: 20-20,000 Hz / Microphone: 100-16,000 HzInput:3.5 mm plugsHeadband:Over the head and adjustableMicrophone:Unidirectional: 62dBV/Microbar and 42dBV/PascalDrivers:30 mm dynamic driversCable Length:7 ft.