Plantronics Blackwire C3215 Headset - Mono - USB Type A, Mini-phone (3.5mm) - Wired - 20 Hz - 20 kHz - Over-the-head - Monaural - Supra-aural - Noise Cancelling Microphone - Black

Hear every detail crisp and clear with a frequency response of 20 Hz-20 kHz Sharp looking over head design will give you a comfortable fit The C3215 headset provides plenty of freedom with wired connectivity Great for Audio/Visual Labs, Assisted Listening Systems and more that have a Mono jack for non-stereo use These supra-aural Blackwire give you the comfort of portability Features boom/on-cable microphone design