black megaphone white background close up, hand loudspeaker, loudhailer, bullhorn, announcement media

abstract acoustic advertise advertisement advertising agitation alarm alert amplifier announce announcement appliance attention audio background banner black broadcast broadcasting bullhorn business call close closeup communication concept design device electronic emergency equipment hailer hand handle held horn icon illustration information isolated loud loudhailer loudspeaker marketing media megaphone message mouth mouthpiece music news nobody notice object plastic portable propaganda public report scream shiny shout shouting sign sound speak speaker speech symbol talk technology tool trumpet tube voice volume warning white