Etched speaker grilles are thin‑gauge metal protective and decorative meshes for loudspeakers, earphones, automotive audio and consumer audio hardware. They protect speaker drivers from physical impact and foreign‑object intrusion, while aiming for high acoustic transparency to minimise sound‑wave attenuation and diffraction. Unlike punched, stamped or woven metal grilles, etched speaker grilles are produced from a single solid metal sheet. Holes, logos and custom decorative patterns are formed by molecular‑level chemical dissolution. This cold contact‑free process delivers consistent aperture geometry, burr‑free smooth edges and controllable open‑area ratio, making it widely adopted for high‑end consumer and automotive audio products where both acoustic performance and premium visual appearance matter.