No Mobile Phones Allowed Sign | Prohibited Device Symbol #3334668 (License: Personal Use)

The image displays a standard prohibition sign: a bold red circle with a diagonal slash overlaying a black silhouette of an older-style mobile phone with physical keypad and antenna. The high-contrast design ensures immediate recognition across cultures and languages. It communicates a strict restriction on mobile device usage to maintain silence, security, or safety.

Frequently used in public venues like cinemas, hospitals, classrooms, laboratories, religious spaces, and secure facilities where electronic interference or distractions must be avoided; matches user intent for signage guidance, policy documentation, or safety compliance resources.