SPEEDBRITE INC. is based in North Carolina and manufactures and distributes worldwide ionic jewelry cleaners and solutions. SpeedBrites are ionic cleaners that utilize an amazing ionic, not ultrasonic process for cleaning. With a SpeedBrite cleaning machine, you can not only clean gold, but opals, pearls, emeralds, and all other soft or porous stones safely in one minute. The SpeedBrite does not remove metal and does not use ammonia or acids. It also does not require heat. Made in the USA.