USBIP Bus ID format?

Hello,

I have installed a couple of different USBIP add-on including HA USB/IP Client and I can se my bluetooth adapter in HA terminal, it comes up as:

Bus 003 Device 002: ID 8087:0a2b which the latter being the serial number etc.

How do I input the bus_id: in the config? I have tried loads of combinations from bus_id: 3-2 etc.

PS im using Unraid with HA VM and the Unraid USB plugin.