No Mobile Phones Allowed - Security Notice Sign #2217583 (License: Personal Use)

This rectangular sign features a bold yellow header with black uppercase text reading “SECURITY NOTICE,” followed by a white background displaying a red circular prohibition symbol enclosing a black mobile phone icon with signal waves, diagonally crossed out. The design follows international safety signage conventions for immediate recognition and compliance.

Used in high-security environments such as military installations, data centers, courtrooms, laboratories, and examination halls to prevent unauthorized communication, recording, or signal transmission. Matches user intent for regulatory compliance, facility safety guidelines, or signage procurement.