How long does the megaphone last during continued use?

The correct answer indicates that the megaphone has a battery life that supports continuous use for approximately 30 minutes. This duration is significant because it allows for effective communication during emergency situations, which is critical for coordination and ensuring the safety of individuals involved.

The 30-minute duration is specifically chosen to balance the need for extended use with battery efficiency. It impacts operational planning, as users must be aware of the limits of the megaphone's battery life to ensure that they can relay important information without interruptions.

In practice, understanding the battery life of emergency equipment like a megaphone ensures that responders can prepare adequately, perhaps by having backup units or additional power sources ready for longer operations. This knowledge ultimately enhances communication reliability in high-stress scenarios where clear instructions are essential.