... , durable 2.Singlechip controlled 3.Power-off protection... Glass ultrasonic cleaning machine 1,Mini Ultrasonic cleaner features: 1 ... , such as various glasses (including contact lenses), magnifying glass, binoculars, microscopes, cameras, video cameras and other parts ... achieved multiplier effect.5, banks, offices, finance, arts and crafts, advertising, office supplies: Such as printers, nozzle, needle ...