"Create a professional 3D promotional image of sleek, modern white headphones. The headphones should have a smooth, matte finish with subtle metallic accents for a premium look. Place the headphones in the center of the frame, slightly angled to highlight their curves and design details. The background should feature a light, pale green gradient, softly transitioning from a lighter shade at the top to a slightly darker tone at the bottom. Add soft shadows beneath the headphones to ground them, and include a gentle, ambient light source from the top right corner to create a realistic shine on the surface. The overall composition should feel minimalistic and clean, with the focus entirely on the product. The scene should convey a sense of luxury and modernity, making the headphones appear highly desirable to potential customers."