RJ9 Phone Headset - Plantronics Compatible QD Headset + Virtual Compatibility Smart Adapter for Cisco Avaya Nec and Most Phones - Walmart.com
Cisco Headset 500 Series Data Sheet - Cisco
Cisco Headset 532 - Wired Dual w USB Headset Adapter (CP-HS-W-532-USBA=)
Cisco Headset 730 Wireless Headset - On-ear, Active Noise Canceling, Bluetooth 5.0, USB A & 3.5mm Jack Connectors, USB HD Adapter, Carbon Black, Bundled w/ Charging Stand - HS-WL-730-BUNAS-C at TigerDirect.com