The TELEX 903E is a very lightweight and comfortable open boomset. It is ideal for air traffic control. The headset is equipped with ActiveGard®, which protects controllers from the effects of an acoustic burst.

  • Very lightweight

  • Superb wearing comfort due to patented two-piece automatic headband and soft ear pads

  • Also available with PTT

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Sound Quality
The 903E electret microphone is designed for use in high-noise environments where speech intelligibility is desired. The electret element virtually eliminates EMI, RFI and magnetic signals channeling the full power of your communications system into crisp, articulate voice transmission with the RTCA frequency response.

Highly Reliable
The microphone was designed to withstand the wear and tear that comes with consistent use. The microphone’s proven electret technology will not decay or deteriorate in any way over extended periods of use.

Ease of Use
The microphone is lightweight and features tailored voice response to make use easy for users.

FAA TSO Approval
The 903E microphone is approved for aviation use under FAA TSO C58A.


  • Frequency Response: 300-5000 Hz
  • Impedance: Matches standard aircraft carbon activity Ω
  • Microphone Sensitivity: 400 dBV/Pa
  • Microphone Type: Electret Condenser
  • Weight: 6.35 oz (180 g)


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