Comfort Digisystem DM30 Microphone

Listen and talk with one single unit. The Digisystem DM30 is a combined microphone and neckloop receiver. It works with the telecoil setting on hearing aids and cochlear implant processors. A pupil can push the push-to-talk button to respond to a question and all other microphones with FCR enabled are blocked. As soon as the button is released the other pupils are free to use their microphones. The teacher uses a separate channel to be able to talk freely without interrupting the pupils. The Free Channel Request (FCR) function makes sure that only one student at a time can talk improving communication discipline in the classroom improves as they cannot interrupt each other.

In other areas of life, the DM30 has an inbuilt microphone allowing it to be used, on its own, as a personal listener and you can create your own personalised Digisystem by combining with any of the microphones and receivers from the Digisystem family. The unit is battery powered.


  • 2 years return to base manufacturers warranty

Technical Summary

  • Transmission Distance: Approx. 30 m
  • Operating time: Up to 10 hours
  • Charging time: Approx. 3 hours
  • Battery: Chargeable Li-Polymer
  • Charger: 5V 220mA
  • Microphone: Built-in, omnidirectional
  • External Input: Microphone / Line Input - User Selectable
  • Type of transmitter: SST - SecureStream Technology
  • Dimensions: 97x41x17 mm
  • Weight: 51g
  • Frequency range transmitter: 852 - 872 MHz, 2.40 - 2.48 GHz
  • Frequency range receiver: 852 - 872 MHz, 2.40 - 2.48 GHz
  • Antenna: Built-in

Box Contents

  • DM30
  • Neckloop
  • Charger
  • Charger Y Lead (to charge 2 Digisystem units at one time)
  • Audio Leads
  • Tie Clip-on Microphone
  • Cloth Bag



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