Classroom Microphones

  • All Michigan Engineering classrooms have a Shure wireless microphone system for instructor use.
  • These microphone systems consist of the lavalier-style mic, the transmitter that the mic plugs into, and the charging station.
  • Instructors can bring their own Shure microphone to plug in and use in the classroom, if desired.


Transmitter Operation

  • Power Switch
    The transmitter for the microphone system has an on/off switch. The switch must be in the on position for audio to be transmitted. Return the switch to the off position when you are finished using the transmitter to preserve battery life.
  • LCD Display
    When the power switch is in the on position, the display on the front of the transmitter should show the estimated battery charge level.
  • LED Status Indicator
    The status LED should light up when power is switched on. If the transmitter is muted or the battery is about to run out, the LED will appear red. If the transmitter is operating normally, with more than one hour of battery life remaining, the LED will appear green.

Charging the Microphone

When finished presenting, please make sure you turn off the transmitter, and return it to the charging base on the instructor lectern. This will ensure that the battery is kept charged, and ready to use for the next presenter.

Note: The microphone should easily slide into the charging station and the LED at the front of the charger will indicate the charging state (red for charging, green for fully charged). If it doesn’t slide in easily or does not light the LED, it is likely inserted backward in the charging station.

Using your own Microphone

The video and step-by-step instructions below detail how to use the classroom microphone system, and also illustrate how instructors can use their own Shure microphone to plug into the wireless transmitter in the classroom. Step-by-step instructions are also available in our knowledge base article.

Note: Engineering classrooms are now only equipped to support a Shure model microphone. If you have any questions about purchasing a new Shure mic, contact CAEN for assistance.

Troubleshooting Sound Output

No sound is heard from the speakers:

  • Check that the power switch is in the on position.
  • Confirm that the LCD display indicates battery life is still remaining.
  • Ensure that the microphone is plugged in
  • Confirm that the microphone is properly positioned (about six inches below the chin.)

Sound is barely audible, is distorted, or there is feedback:

  • Try positioning the mic closer to or further away from your mouth to achieve the proper audio level.

If the sound is still unsatisfactory, contact CAEN for assistance.