![background image](http://html.mh-extra.com/html/sennheiser/hmec-46/hmec-46_instructions-for-use-manual_1241266005.webp)
3
The HMEC 46 headset
The HMEC 46 headset with NoiseGard™ active noise com-
pensation features dynamic, open headphones. The
noise-compensating condenser microphone ensures ex-
cellent speech transmission even in noisy environments.
Designed for use in aircraft cockpits.
Features
y
NoiseGard™ active noise compensation reduces ambi-
ent noise by approx. 10 dB – consequently the radio
volume can be decreased
y
Extremely lightweight
y
Extremely comfortable to wear due to the patented
two-piece automatic headband and soft ear pads
y
Peak level protection safeguards you from volume
peaks above 110 dB
y
“Flip-away” headphone allows single-sided listening
y
Flexible microphone boom, can be worn on either left
or right-hand side
y
Noise-compensating condenser microphone ensures
excellent speech transmission
y
Single-sided cable, easy to replace
y
With NoiseGard™ switched off, the headset can be
used as a conventional headset
y
Power supply for NoiseGard™ from aircraft DC power
supply system (on suitably equipped aircraft) or
batteries/rechargeable batteries
y
“Auto shut-off” extends battery life
y
ETSO/TSO approval C57a/C58a
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