08-10-2018 10:22 AM
That is correct. The only model to offer bluetooth is the Clip Sport Plus. It does not have a micro SD slot as one of its features is that it's water resistant (note it is NOT water-proof). A card slot would allow water/moisture in.
Not trying to influence you in your decision, but there are several posts/threads here on the forum regarding problems with bluetooth connectivity. In short, it does not connect with all the bluetooth/wireless ear/head phones out there. You might look through them (Search function helps here) & see if any reporting issues have the same ear phones as you do.