Which of the following is NOT a typical safety equipment item?

In the context of safety equipment for boating, life jackets, fire extinguishers, and flares are all essential items designed to enhance safety on the water. Life jackets help ensure the survival of individuals in case of falling overboard, fire extinguishers are crucial for preventing or controlling onboard fires, and flares are used to signal for help in emergencies, making them vital safety equipment.

In contrast, while cell phones can be a useful communication tool in emergency situations, they do not qualify as standard safety equipment. Their functionality can be limited by factors such as inadequate signal coverage, battery life, and the possibility of water damage. Therefore, they are not specifically designed or required for safety on boats like the other items listed, making them the correct answer for something that is not typically classified as safety equipment on board.