<p>Anti Blue Lights Cheerwe laptop screen blue light blocker can filter the harmful blue light with the wavelength between 385-445nm,and release the beneficial light with wavelength above 445nm. Advanced Blue Light Blocking Technology protects your eyes, sleep, and skin from the negative effects of blue light overexposure.</p> <p>Not Impact On-screen Color \u0026amp; Touch Sensitivity: Compared with other blue light blocking screen protector, Cheerwe blue light laptop screen protector will not affect the true color of the image on the screen. Real touch sensitivity for a natural feel that provides flawless touch screen accuracy.</p> <p>Easy Installation:The air-exhausting adhesive makes the PET Film(Not Glass) automatically attach with screen smoothly, hassle-free and bubble-free, no residue when removing the screen protector.If there is small bubble just squeeze it out.</p> <p>CompatibilityCheerweblue light laptop screen filter fits for 13.3 inch with Aspect Ratio 16:9 laptop, Diagonal Length: 13.3 inch (33.78 cm) Width: 11.6 inches (29.4 cm) Height: 6.5 inches (16.5 cm) Not Include The Screen Bezel.</p> <p>You Will GetPACKAGE INCLUDES: 2 Anti Blue light filters, 2 cleaning kits, If you have any problems during use, please contact us, we will do our best for you!</p>