Jabra BIZ 2300 Headset - Mono - USB Type CJabra BIZ 2300 Headset Mono USB Type C Wired 32 Ohm 70 Hz to 16 kHz Over the head Monaural Supra aural 7. 7 ft (2. 35 m) Cable Noise Cancelling, Uni directional Microphone Noise Canceling VPN: 2393 829 189 SKU: AC821774 UPC: Loading These supra aural BIZ give you the comfort of portability Hear every detail crisp and clear with a frequency response of 70 Hz 16 kHz Listen to your tape recordings or use them when listening to telephone calls on Skype