Setup, Compatibility & Care
To ensure the longevity of your PH4189U sunglasses, handle them by the temples rather than the lens area to avoid smudges and structural stress. When not in use, always store the glasses in a protective hard case to prevent surface scratches on the lenses or pressure damage to the frames.
For cleaning, use a dedicated microfiber cloth and a mild lens cleaner or distilled water. Avoid using household glass cleaners or paper towels, as these can strip protective coatings or create micro-abrasions on the lenses. Periodically check the hinge screws to ensure they remain snug, and avoid leaving the sunglasses on a hot car dashboard, as extreme heat can compromise the frame integrity.