Plantronics Blackwire 3210 Mono Wired USB Headset with Boom Mic

Mono – USB Type a – wired – 20 Hz – 20 kHz – over-the-head – monaural – supra-aural – noise cancelling microphone The C3210 headset provides plenty of freedom with wired connectivity Listen to your tape recordings or use them when listening to telephone calls on Skype with these mono sound headset Hear low subs and soaring vocals with a frequency range of sound from 20 Hz-20 kHz Features Boom/on-cable microphone design These supra-aural black wires give you the comfort of portability Connectivity Technology: Wired USB