Cisco CP-HS-W-531-RJ= Headset - 531 (Wired Single with Quick Disconnect coiled RJ Cable) Mono Quick Disconnect Wired 90 Ohm 50 Hz to 18 kHz Over the head Monaural Supra aural Electret, Condenser, Uni directional Microphone Noise Canceling

The Cisco Headset 500 Series is a professional range of headsets designed for Cisco IP Phones and soft clients.

These headsets are optimized for workers in open work spaces so they can be more productive with vibrant audio, powerful noise isolation and exceptional comfort.