What type of communication devices might a security guard use?

Security guards commonly utilize radios, smartphones, or personal accountability devices as their primary means of communication. Radios are essential for instant, real-time communication across larger areas, allowing guards to remain connected with their team and report incidents or needs efficiently. Smartphones can incorporate a wide range of communication options, including calls, texts, and specialized security apps that enhance coordination and reporting. Personal accountability devices ensure that guards are safe by monitoring their movements and status, and alerting supervisors if they do not check in as required.

The other options do not align with the practical needs of security communication. Emojis and text messages, while they can be used informally, do not provide the reliability and immediacy required in security operations. Televisions and loudspeakers are more suited for mass communication or notifications rather than direct, on-the-ground communication between security personnel. Furthermore, fax machines and landlines are increasingly outdated in the context of immediate and effective communication required within security operations, making them less practical as primary tools for security guards.