La description

 Fire Extinguisher Ball is a ball shaped fire extinguisher. When simply throw it into fire, it would activate within 3 seconds and effectively disperse-extinguishing chemicals. When a fire occurs and no one is present, Fire Extinguisher Ball will self-activate when it comes into contact with fire and give loud noise to warn the people nearby.
   Due to this feature, it can be placed in many fire prone area such as electrical circuit breakers, or kitchen, cars, hotels, bla... There is no special train 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 for 5 year.