bluetooth module

hello guys , i ordered a bluetooth module but it’s only a base board here is the pic

does onyone know what i need for built a full bluetooth module with this board please?

Looks like the baseboard for a HC-05 or HC-06. Complete boards of this type are sold e.g. under the name FC-114 for ~ $3. I always would buy an assembled HC-05 board.

thanks for your reply, yeah i would also buy a complete module rather than to assembly it myself but i misread the description when i bought those baseboard :)