I often have to make business presentations to 30-40 people in rooms with no audio equipment. At the end of the week, my voice is almost lost .. so I had to come up with a solution to make my presentations more professional. I thought about a Bluetooth microphone + Bluetooth speaker like this or this but for an unknown reason, none of my Bluetooth mics could be paired with a Bluetooth speaker !
I also thought about an integrated speaker + microphone system like this one, but unfortunately, its doesn't work with Bluetooth and its way too expensive...
does anyone please have a solution or an idea that is portable , wireless and not very expensive for less than 60$ ?