CAEN Knowledge Base
CAEN Knowledge Base

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How do the wireless microphone systems in the classrooms work? Can I use my own mic?

All College of Engineering classrooms have either an AKG or Shure wireless microphone system. These lavalier-style mics consist of two parts: the transmitter, and a microphone with an attached cord that connects to the transmitter. Further information on using these wireless mics in a classroom can be found on our main Classroom Microphones web page.

The video and step-by-step instructions below detail how instructors can bring their own microphone to plug into the wireless transmitter in the classroom. It may also be useful for instructors who want more information about how the wireless mic systems work.

Video Overview

Step-by-Step Instructions

All College of Engineering classrooms include a wireless microphone system, which consists of a charging station, transmitter, and a lavalier-style microphone:

If you wish to use your own microphone in a classroom, you will only need to bring the small mic with cord:

First, note that each classroom will have one-of-two different types of microphone models; either one from AKG, or one from Shure. They both work the same way, but the microphones connectors are not compatible with each other. So, if you use different classrooms and want to bring your own mic, you should double-check that they have the same type microphone system available:

To connect your personal microphone, first remove the transmitter unit from the charging station, and find the little black button on the side of the microphone connector. Press and hold this in while pulling straight out:

Now you can plug in your personal microphone. Note below how the circular connector has a notch or key, so it only plugs into the transmitter at the correct orientation:

Insert the connector and turn it a little, if necessary, until the key lines up and the connector goes in freely. Then just apply a little force until it clicks in. You can now turn on the microphone to start using it:

  • For the AKG, power it on by sliding the power switch on top of the transmitter. This model has a middle position on the power switch that mutes the sound, so you’ll want make sure the switch slides all the way over to ON:

  • For the Shure model, the power switch works the same way, but looks a bit different, and does not include the middle/mute position:

When clipping the microphone to your shirt, make sure it is about six inches below your chin, and you are ready:

When you are finished presenting, please turn off the transmitter, and swap back the microphone that was provided in the room. As a last step, please return the transmitter to the charging station, so it has power for the next time an instructor needs it:


If you have any further questions about this process, or about which microphone model you will need, please contact caen@umich.edu.