Poly Blackwire 3215 Monaural USB-A Headset - Mono - Mini-phone (3.5mm), USB Type A - Wired - 32 Ohm - 20 Hz - 20 kHz - On-ear, Over-the-head - Monaural - Supra-aural - 7.45 ft Cable - Noise Cancelling Microphone - Noise Canceling - Black

Your voice will be heard loud and clear with the boom microphone design to ensure maximum Headset usage efficiency Mini-phone (3.5mm) host interface ensures dependable data transfer for maximum efficiency Wired connectivity technology offers maximum listening convenience Over-the-head earpiece design provides a comfortable and secure fit 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 cancelling microphone technology ensures easy, convenient listening and talking with maximum sound transfer efficiency Provides exceptional quality sound with greater immersion