This product is either discontinued or we cannot get that from suppliers.
Jabra Biz 2400 2499-829-209, Wired, Over-the-head, Supra-aural, Host Interface USB, Design Boom, Sound Mode Stereo.
Jabra Biz 2400 II Duo USB Mic. 82 NC BT UC (2499-829-209) The Jabra Biz 2400 was developed with one goal in mind: to be the world's best corded contact center headset, delivering both best in class noise cancellation and acoustic shock protection.