HMD 46-II Series

Sennheiser’s HMD 46-II Series are lightweight headsets for air traffic controllers and C3 operators requiring excellent sound performance and long-term wearing comfort.
For more information choose a ATC/C3 Team Contact


Sennheiser’s HMD 46-II Series of very lightweight, extremely comfortable headsets are designed specifically for all air traffic control communication and C3 (Command, Control & Communications) operators requiring excellent sound and long-term wearing comfort. A noise-cancelling microphone delivers optimum speech clarity for reduced “call-back/read-back” events. The headset can be operated in two channel mode. Soft acoustic foam ear pads and patented two-piece automatic headband deliver first class comfort with a perfect, secure fit. A flip away headphone allows for single-sided listening and a reinforced flexible microphone boom allows for left or right sided use. The headsets feature a single sided cable which is easy to exchange. Sennheiser ActiveGard® technology protects users hearing against acoustic injury caused by a sudden sound burst on the line, without interrupting communications - an added safety feature that differs from traditional acoustic shock clipping circuitry. The headset features a dynamic microphone and the series consists of two variants: HMD 46-3-II (double-sided including ActiveGard®) and HMD 46-31-II (double-sided without ActiveGard®)


  • Sennheiser Voice Clarity for accurate communication, provides excellent voice transmission and reception

  • Perfect speech transmission Noise-cancelling microphone filters out ambient noise for optimum speech clarity to reduce “call-back/read-back” events

  • Fits every application with a choice of electret/dynamic microphone, and single sided or dual sided earcup model

  • Two channel stereo application for multi-channel communication

  • Sound protection from acoustic injury caused by sudden sound bursts on the line with Sennheiser ActiveGard® technology


  • Headset HMD 46
  • Cable clip
  • Wind and pop screen
  • Safety Guide
  • Quick Guide


  • 顏色
  • 阻抗
  • 頻率響應(話筒)
    100 - 12,000 Hz
  • 換能原理(話筒)
    Dynamic, noise cancelling, uni-directional
  • 頻率響應(耳機)
    20 - 14,000 Hz
  • 話筒
    Load resistance 150 - 2,200 Ohm
  • THD,總諧波失真
    < 1 % at 95 dB SPL (300 - 3,000 Hz)
  • 接觸壓
    2.7 N
  • 佩戴方式
    Supra-aural (on ear)
  • 重量
    150 g /5.29 oz
  • 儲藏溫度
    -55 °C - +70 °C
  • 工作溫度
    -15 °C - +55 °C
  • 峰值偏差的聲壓級
    95 dB (1 kHz, 1 mW)


  • Fact Sheets
    • Fact Sheet HME 46-II and HMD 46-II Series (240 KB) 下載

  • EU Declaration of Conformity
    • Declaration of Conformity (440 KB) 下載

  • Digital Brochures
    • ATC Brochure 2018 (4.3 MB) 下載