Purple Megaphone with Speech Bubble Template

3D rendered purple megaphone loudspeaker floating at an angle, large empty speech bubble above it, small rounded rectangle text bar below, comic-style zigzag sound wave lines radiating from the megaphone, soft lavender and periwinkle purple color palette, halftone dot pattern background with sparkle star accents, gradient light background fading from lavender edges to near-white center, clean modern graphic design template layout, smooth glossy plastic material on megaphone, soft diffused studio lighting, no text, social media announcement template aesthetic, centered composition