Speakers Not Detected: Razer Leviathan V2

Hi Everyone. My "Razer Leviathan V2 PC Gaming Soundbar with Subwoofer" arrived today, but I cannot get my computer to detect it. It looks like all I need to do is plug it in by USB and let windows take care of the rest.

I have tried:

• Installing Synapse 3 (the one that supports this particular speaker).
  
• Restarting my computer (Synapse still says "Please Connect a Device" after restart).
  
• Using 4 different USB ports in the back and one in the front. This includes the port which used to connect my mouse, just to exclude the possibility of something being wrong with my motherboard's USB ports.
  
• Installing Synapse 3 on a laptop, connecting the speakers and restarting the laptop.
  
• Trying a different USB A <-> USB C cable.
  
• Updating Synapse. Repairing Synapse.
  
• Going to the device manager and running "Scan for hardware changes".
  
  
  
  • Note: The device doesn't appear in the device manager either.
    
  
  
• Restarting the soundbar between these steps.
  
• Disconnecting the subwoofer.
  

Another note is that pressing the bluetooth button doesn't put the device into pairing mode as the manual suggests is should (it doesn't appear to do anything). However, the power button does work as it should (turning the device off and on), the RGB is cycling and the "source" and "power" lights are lit up in green.

I've just found the "Device Detection Troubleshooting Tool", though it says to ensure the device is detected under the device manager and contact support if it's not (I'll do that now).

I'm keen to hear if there's anything obvious I may have missed! Perhaps a conflict with antivirus (Sophos) or other audio drivers could be the culprit?