No Mobile Zone Sign - Official Prohibition Symbol for Cell Phone-Free Areas #320089 (License: Personal Use)

This high-contrast sign features a black mobile phone with Wi-Fi signal waves inside a red circle with a diagonal slash, symbolizing prohibition. Below, a maroon banner reads “NO MOBILE ZONE” in white serif font, with a small “V1” badge in the upper right corner. The design follows international signage conventions for clarity and immediate recognition.

Used in environments requiring silence or security-such as hospitals, exam halls, libraries, courtrooms, or sensitive facilities-to indicate that mobile phone use is strictly prohibited. Matches user intent for finding authoritative, printable signage for policy enforcement.