Datasheet

Confidence where
sound matters
Designed for demanding air traffic
controllers and C3 users, the Sennheiser
HME/HMD 27 Series headsets bring high
quality sound to the control room with an
exceptional degree of comfort. Its
lightweight design succeeds in providing
high passive attenuation while remaining
comfortable over long hours of use.
A noise-cancelling microphone enhances
voice intelligibility - even in noisy
environments, for confident, clear
communication and closed ear cups increase
listening accuracy.
Sennheiser’s unique, split two-piece
headband alleviates pressure on the top of
the head for first class comfort and users
can choose left or right boom microphone
positioning. Sennheiser ActiveGard®
technology protects users’ hearing against
acoustic injury caused by a sudden sound
burst on the line, with no risk of
communication drop-out.
BENEFITS AND FEATURES
– Sennheiser Voice Clarity for accurate
communication, provides a natural
listening experience
– Excellent speech transmission Noise-
cancelling microphone reduces ambient
noise to improve intelligibility and reduce
“call-back/read-back” events
– Two channel stereo mode possible to use
one channel for radio communications and
one for telephone communications on dual
sided headset
– Sound protection from acoustic injury
caused by sudden sound bursts on the line
with Sennheiser ActiveGard® technology
– Single-sided listening with flip away ear
cup on dual sided headset
– Flexible microphone boom - can be worn
on either left or right-hand side
– Superb wearing comfort with patented
two-piece automatic headband and soft
circumaural ear pads
– Choice of PTT switches for personal
preference
– Cable and connector A wide range of
cables and connectors for customization
HME 27 / HMD 27 Series
ATC Headsets
FACT SHEET