Fire 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 as a fire alarm. Because of this feature, it can be placed in may fire prone area such as above electrical circuit breaker or in 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 and maintenance are required for the product life span of 5 years.