No sound for bluetooth device

Hello,
In order to attach a bluetooth device to my laptop, when the bluetooth settings popup to connect my device, I don't know which profile select. Please, with the following devices, could you tell me which profile to select?
-> A audio headset with microphone in order to speak.
-> A nomad wireless speaker (without microphone).
Thanks in advance.

Maybe so easy for english native speaker, but I need help please.

What is the device you are trying to connect?

I am guessing from the post it is a headset with a microphone. You can actually try each one, and if it does not connect just delete the device, start a new search and try the next option.

I use a Bluetooth headset that has trouble connecting. I also have outdoor rock speakers that connect easily. My point is be patient and try multiple times each option before moving to the next one as each device can be different. If it is a headset with microphone I would try the headset first myself, though I have not used one myself.

My 2 devices are:
-> A audio headset with microphone in order to speak.
-> A nomad wireless speaker (without microphone).
Which option to select for each?
Optional question: what are the differences between handsfree, headset and synchronie audio?

A audio headset with microphone in order to speak

Select handsfree

A nomad wireless speak

Select headset

What are the differences between handsfree, headset and synchronie audio?

Handsfree is just an headset with microphone
Headset is just an headset but without microphone (lol), also applies for speakers (wired or wireless speakers)
and synchronie audio... to be honest i dont have idea, i never had that option