Compact ultrasonic cleaner specially designed for Ortho-K and RGP contact lenses. Special micro ultrasonic transducer with 47,000 Hz, 7W, AC100-240V adapter. Blue or orange color. Daily cleaning takes 2 minutes instead of overnight soaking in chemicals, 5-minute for enhanced or weekly cleaning. No need to rub the contact lenses. Saline water can be used instead of contact lens solution.