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1) Open the battery chamber cover at the bottom and insert (1.5 V; AAA size) battery. (Battery not included)
2) Fill the contact lens holder with multipurpose cleaning solution until 2/3 full and close the cap.
3) Insert the contact lens holder into the vibration slot and press the button to start cleaning process (about 3-5 minutes).
4) Take out the contact lenses and replace the contact lens holder with new multipurpose cleaning solution.