Jabra BIZ 2400 II Duo NC IP with GN1200 Cable Duo QD Headset | eBay
Jabra BIZ 2400 II Mono Noise Canceling NC QD headset 2403-820-205
Amazon.com: Jabra 2400 II USB DUO CC Wired Call Center Headset for Softphone with Noise Cancelling Microphone, Optimized for Unified Communication : Electronics