No impairment of display visibility and touchscreen functionality. You will hardly notice any difference compared to a Sony Alpha 9 without a screen protector. Scratch-resistant due to the special hard-coated surface! Highly resistant to scratches and abrasion! 4H pencil hardness. Compatible with Sony Alpha 9, excellent quality ensured through the use of state-of-the-art precision machines (laser cutting technology) - optimal edge adhesion, very good shape stability. Easy installation! No bubble formation possible on a dust-free display! When applying the film, air is displaced and it adheres to the display almost by itself. Can be removed at any time without residue! Made in Germany - construction, cutting, and finishing done at fair wages in Germany.