USB Headset; Backwards compatible USB 2.0 connection is faster for better listening and vocal recording; In-line mute/volume control eliminates the need for a sound card; Universally applicable with current Windows and MAC formats; Durable ABS plastic earcups withstand day in and day out use; Adjustable comfort sling headband fits all sizes; Flexible boom microphone for language and VOIP uses; Double reinforced strain relief cord connector won’t pull out