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Thirty 3G Headset - Discontinued

For reference only. This product has been discontinued. To see our current line of award-winning ANR headsets, click here.

28-30dB of active cancellation
12-22dB of passive attenuation

  • Cell/satellite phone interface
  • Patented AES™ "Auto Shut-Off" powers down the active electronics if system is left unattended
  • Battery status indicator
  • ANR power for up to 30 hours on just two AA batteries
  • Auxiliary audio interface for music or audible checklist/warnings
  • Personal side-tone EQ with bass and/or treble boosting


  • Dual volume controls, stereo or mono switchable
  • Adjustable gain pre-amp allows for field 'balancing' of mic sensitivities
  • Temperature sensitive Confor-Foam™ ear seals
  • Weighs under 16 ounces
  • 5-Year warranty
  • Padded headset bag, mic windscreen, and batteries included

General Data

Connectors: .250" Stereo Headphone Plug .206" Stereo Microphone Plug
Power Supply: Small In-Line with Left and Right Ear Level Control, Stereo/Mono Switch, Powered by Two AA Batteries
Battery Status Indicator: Red LED Low Battery Indicator
Operating Time: 25-30 hours
Weight: 15.8 oz

Headphone Data

Transducer: Dynamic, Selective Frequency Amplified for Enhanced Speech Intelligibility
Frequency Response: 20-30,000 Hz
Nominal Impedance: 120 ohms Stereo 60 ohms Mono

Microphone Data

Transducer Principle: Noise Cancelling Electret
Frequency Response: 200-5000 Hz
Maximum SPL: 114 dB
Terminating Impedance: 470 ohms
Operating Voltage: 8-16 V DC Appx 5-12mA

Active Cancellation Profiles



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