This product is either discontinued or we cannot get that from suppliers.
Jabra Engage Link Usb-c Ms 50-159, Device Remote control, Headphones / headsets, Connector 1 x USB (24 pin USB-C), Designed For Jabra Engage 50 Mono, 50 Stereo, 65 Mono, 65 Stereo, 75 Mono, 75 Stereo.
Jabra Engage Link USB-C MS (50-159) Jabra Engage wired headsets. Allows intuitive control of calls with volume control, mute, speed dial, answer and hang up calls. Designed to stay flat. USB-C connectivity.