What you get depends in part on what phone you have. Apparently, iPhone has a troublesome Bluetooth stack. You have to go WiFi for those.
You might want to look at this page from Torque Lite/Pro: https://torque-bhp.com/wiki/Bluetooth_Adapters
The prices listed are outdated.
You might want to look at this page from Torque Lite/Pro: https://torque-bhp.com/wiki/Bluetooth_Adapters
The prices listed are outdated.