Convert Bluetooth Headset to 3.5mm Stereo Out And Mic In (Duplex)

I know stereo 3.5mm jack to Bluetooth dongles exist for Bluetooth headphones. But what if this is for a Bluetooth headset with a Mic? Are there Bluetooth dongles for line-in also? For example, my laptop has line-out (stereo) and line in (mic) jacks. I want to use a bluetooth headset with this. I don't want to use a bluetooth adapter since I will need to change my sound devices in the control panel when switching between my 3.5mm with line-in mic headset and my cheap Bluetooth headset. I want to simply plug the Bluetooth dongle into my line in and stereo line-out jacks and have this sound sent

Question by Tom Geeee on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.