Logitech G633 - Whats in the Box; G633 Headset; Custom Tags (L;R); PC Cable (USB to Micro-USB, 3 m)

3. Confirm the firmware version is current. Version 98.3.27 is current as of January
2019.
If the headset does not have the latest firmware, make sure the headset and the USB Wireless
Mix Adapter are plugged directly into the motherboard before you start the firmware update
process.
IMPORTANT: Interrupting the firmware update can lead to a bricked (non-responsive)