Emergency exit sign and public address system megaphone at the airport.
Schlüsselwörter
loudspeaker,
public address,
megaphone,
address,
air,
alarm,
announce,
announcement,
arrow,
bullhorn,
direction,
electrical,
emergency,
escape,
evacuation,
exit,
figure,
grey,
green,
hung,
public,
signs,
siren,
speaker,
speaking,
system,
terminal,
trumpet,
warning
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