VT Bluetooth-Headset Wireless headphone with Noise-Cancelling-Micropho – BargainFox.com
Professional Single Ear Noise Cancelling Office/Call Centre Headset With HIS Bottom Cable For Avaya IP 1608, 1616, 9601, 9608, 9611, 9611G, 9620, 9620C, 9620L, 9621, 9630, 9640 + many more : Amazon.co.uk: Electronics & Photo
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Wireless Headset for Avaya Phones - Jabra PRO920 Mono
Monaural Rj9/Rj11 Call Center Telephone Headset with Noise Cancelling Mic and Volume Control for Cisco, Avaya, Yealink - China Telephone Headset and Call Center Telephone Headset price | Made-in-China.com