Need help on speaker/microphone

[numbersguy49]

I have a Basic Plan with Zoom.   I use a Microsoft laptop.   Our investment club meets in person in a physical room, with 1-3 other members joining via Zoom.   To enhance audio and microphone for those on Zoom, we have purchased a 3 microphone/speaker product which connects into the one port in my laptop.    However, only one microphone/speaker works at one time.   In Settings, I am able to switch between microphones/speakers, but only one works at a given time.    What do I need to do in Settings so that all 3 work at the same time?