Fire Extinguisher Ball is a ball-shaped fire extinguisher. Simply thrown into a fire, it will activate within 3 seconds and effectively disperse-extinguishing chemicals. When a fire occurs, and no one is present, Fire Extinguishing Ball will self-activate when it comes into contact with fire and give a loud noise like a fire alarm. Because of this feature, it can be placed in a fire-prone area such as electrical circuit breaker or a kitchen. There is no special training or skill required to operate the ball and no need to face the dangers of the fire. No inspection or maintenance is required for the product lifespan of 5 years.