Your voice will be heard loud and clear with the boom microphone design to ensure maximum Headset usage efficiency USB Type A host interface ensures dependable data transfer for maximum efficiency The 5210 headset provides plenty of freedom with wired connectivity Over-the-head earpiece design ensures maximum comfort and pain, fatigue-free listening Great for Audio/Visual Labs, Assisted Listening Systems and more that have a Mono jack for non-stereo use Leatherette ear cushion material which is cost-effective and has a prolonged life These supra-aural Blackwire give you the comfort of portability Call/Answer/End earpiece control for optimal performance and maximum reliability Noise cancellation provides exceptional hearing under loud environments Provides exceptional quality sound with greater immersion