Classroom Microphones

  • All Michigan Engineering classrooms have a Shure wireless microphone system for instructor use.
  • These lavalier-style mics consist of two parts: the transmitter, and a microphone with an attached cord that connects to the transmitter.
  • Instructors also have the option of bringing their own microphones to plug in and use in the classroom.

Transmitter Operation

  • Power Switch
    The transmitter for this system has a 3-position switch. The middle position is unused, so make sure to slide the switch fully from one extreme to the other when operating. The switch must be in the “ON” position for audio to be transmitted. Make sure to 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 number of hours of battery life remaining.
  • LED Status Indicator
    The status LED (to the left of the LCD display) 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 using the microphone and/or transmitter, please make sure to turn it off, 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.

Bringing your own Microphone

The video below details how instructors can bring their own microphone to plug into the transmitter, and use 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 and that the LCD display indicates the number of hours remaining. Also, ensure that the microphone is plugged in and properly positioned.

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. For example, the typical position for the lapel mic is about six inches below the chin.

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