Poly Blackwire 3215 Monaural USB-A Headset - Mono - Mini-phone (3.5mm), USB Type A - Wired - 32 Ohm - 20 Hz to 20 kHz - On-ear, Over-the-head - Monaural - Supra-aural - 7.4 ft (2.27 m) Cable - Noise Cancelling Microphone - Noise Canceling - Black