This product is either discontinued or we cannot get that from suppliers.
Jabra 204200 Blueparrott C300-XT, Over-the-head, Microphone Design Boom, Black, Sound Mode Mono, Connectivity Wireless Bluetooth.
The Jabra C300-XT Wireless Headset 204200 offers the best of both worlds. Enjoy premium BlueParrott features in a compact design that comes with a choice of wearing styles.