an isometric depiction of a megaphone represents promotions

electronics multimedia lighting glasses machine firearm gadget weapon brand light wheel organ iron font hand eye isometric megaphone announcements promotions advertising campaigns poster background wallpaper pattern 3d speaker vector isolated phone white color communication red electronic advertisement device audio loudspeaker electric power horn amplifier bullhorn volume emergency attention tube amplification symbol portable isolate address alert announce announcement audible broadcasting call cutout loud mega message object public single sound speak talk voice