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GN Jabra SUPREME UC - Headset - Wireless - Bluetooth 3.0 EDR - Active Noise Canceling

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BIZ 2400 Stereo Noise Canceling Duo USB headset, Supporting the Industry's First Integrated Bluetooth Chipset for Mobile, and Applicable Bluetooth Enabled Office Phone Connectivity

BIZ 2400 Stereo Noise Canceling Duo USB headset, Supporting the Industry's 1st Integrated Bluetooth Chipset for Mobile, & Applicable Bluetooth Enabled Office Phone Connectivity. Microsoft OC/Lync Cert