Galaxy J7 Glass Screen Cover 2 PCS Pack, Tektide Tempered Glass Screen Protector for Samsung Glaxy Compatible with Samsung Galaxy J7 Anti-blue light layer filters out blue light that may damage your retina and ruin your sleep. No camera cutout design preventing dust accumulation around the front facing camera. (This wont affect the front facing camera) Introduce [Retina Armor 2.0] which features more effective blue-light filtration, minimum color distortion and greatly superior overall view experience. (*Note: Upgraded [Retina Armor] is true colorless. The screen protector may appear blue tinted under certain light source as the result of blue spectrum in the light being deflected and filtered out.)