I have 2 pair of Sena SPH10 blue tooth intercom head sets,
https://www.sena.com/product/sph10/, and after wearing them for several hours, they become uncomfortable, so to take advantage of their capabilities, I want to build a circuit that will make them work with with a regular speaker by tapping into the signal to the ear phone or by using a microphone to listen to the ear piece and amplifying that to drive a car type speaker. Then all that would be needed is an extension lead for the microphone of the head set.
Does anyone have any suggestions as to what would be a good amplifier for this purpose?
Thanks,
Jeff