Poly - EncorePro 520 - Stereo Wired Headset - Noise Cancelling - 3.5mm - Over-the-head - Black

Poly EncorePro 520 with Quick Disconnect Binaural Headset TAA - Stereo - Mini-phone (3.5mm) - Wired - 20 Hz - 10 kHz - Over-the-head, On-ear - Binaural - Supra-aural - 2.58 ft Cable - Noise Cancelling