I don’t like the option at all, in which a rather large appendage will hang on the player during use in the form of a bluetooth adapter almost the same size as the player itself. Therefore, if I knew what part you need to buy and know the place on the electronic board where you need to solder...

Thanks for the answer, but I meant a module for installation inside the player - on an electronic board using soldering.

Hello. I want to ask everyone. I'm not satisfied with the version of the bluetooth 3 module in this player! Is it possible to replace this module on the electronic board with a version 5 module? Has anyone already done this? I don't think it will be very difficult to do that. The main...