Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
advertisement alert amplifier announce announcement art attention audio background broadcast brown bullhorn calling ceiling circle communication design drawing electric floor horn information iron light lighting line loud loudspeaker megaphone message metal music news number object old outdoor pa pattern phone power public shout siren sound speak speaker symbol system talk technology tell urban vintage voice volume wall warning white wing wire wood yellow