bullhorns
Handheld voice amplifiers
Bullhorns are portable loudspeakers with a built-in microphone and amplifier, shaped like a cone or horn.
They project the voice over distances without electrical hookups, making them standard equipment for coaches, protest leaders, and emergency responders: She grabbed the bullhorn and addressed the crowd.
Also called megaphones.
Sound amplification device
- volumeAmount of space filled
- projectionSomething that extends outward
- acousticRelating to sound
- decibelTenth of a bel
broadcast · PA system · announcement · voice · audible · microphone · amplifier · speaker
Gathering for a cause
- demonstrationPublic display of opinion
- chantRepetitive rhythmic phrase
- sloganMemorable promotional phrase
- activistVigorous cause champion
march · crowd · amplify · organizer · picket · solidarity · announcement · agitator
Civil law enforcement
- crowd controlRegulating gathered masses
- evacuationRemoval from danger
- commandAuthoritative instruction given
- directiveFormal command or instruction
officer · emergency · dispersal · instruction · warning · security · marshal · official
loudspeaker
Sound amplification device
- volumeAmount of space filled
- projectionSomething that extends outward
- acousticRelating to sound
decibel · broadcast · PA system · announcement · voice · audible · microphone · amplifier · speaker · sound
rally
Gathering for a cause
- demonstrationPublic display of opinion
- chantRepetitive rhythmic phrase
- sloganMemorable promotional phrase
activist · march · crowd · amplify · organizer · picket · solidarity · announcement · agitator · loudspeaker
police
Civil law enforcement
- crowd controlRegulating gathered masses
- evacuationRemoval from danger
- commandAuthoritative instruction given
directive · officer · emergency · dispersal · instruction · warning · security · marshal · official · coordinator
spirit
Soul, mood, or liquor
game day · stadium · fans · team · cheer · yell · homecoming · mascot · enthusiasm · support
foghorn
Loud maritime warning device
navigation · vessel · deck · captain · crew · warning · coast · buoy · lighthouse · maritime
- noisemakersnoisemaker, air horn, bell, buzzer, kazoo
- handlebarsdrop bars, drops, ape hangers, aerobars, gravel bars
- labor strikeswalkouts, walkout, picket lines, strike action, coal strike
bullhornsmicrophones
Audio input devices
listening devices · receivers · hearing aids · earpieces · recorders