3d
911
alarm
ambulance
announce
announcement
background
broadcast
bullhorn
button
circle
communication
danger
department
doorway
emergency
escape
fire
flat
help
icon
illustration
isolated
isometric
loud
loudspeaker
message
mobile
object
orange
phone
police
red
safety
security
set
shout
sign
smartphone
speaker
speech
symbol
telephone
volume
warning
yellow