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A filter that makes the contents of the display almost invisible to everyone but the user of the device. At the same time, the implemented filter neutralizes the harmful blue light emitted by the screens of electronic devices. The filter protects against the negative effects of light in a harmful range of waves that can affect sleep disturbances, especially when using the phone after dark.
In addition, the filter has been coated with anti-glare coating, which makes it easy to use the screen with high lighting
The described version of the product is equipped with patented by Pan