Followup:
I had been under the impression that the mic/transmitter set which I purchased could be used as a tool in doing a power point presentation before an audience.
For this to have worked would have required a pair of external speakers as the speakers built into the laptop are totally insufficient.
Luckily, the organizer of the meeting brought a self-contained unit that included a hand-held and a lapel microphone.
Lesson learned: the system I had purchased was intented for voice recording on the laptop.
I hope this answer will help someone else in making the right decision.