No Phones Allowed Sign -禁止手机使用标识图示 #3334657 (License: Personal Use)

The image displays a black feature phone centered within a bold red circle and diagonal slash-the standard international prohibition symbol. The phone has a physical keypad and small screen, evoking older mobile models to ensure broad recognition across age groups. The transparent background allows flexible use on signage, digital interfaces, or policy documents.

Commonly used in educational settings (e.g., exam halls), healthcare facilities, theaters, religious spaces, and workplaces where device silence or disconnection is required. Matches user intent for finding authoritative, printable, or embeddable no-phone signage.