Product description More and more people use their smartphones to watch videos or movies, however, it gets incredibly uncomfortable to watch a small screen for longer periods of time, and it can even damage your vision. If you often watch videos and movies and are tired of uncomfortably staring at a small screen, our screen magnifier is perfect for you.Why you buy the 3D curved screen amplifier? Protects eyes from fatigue and myopia Widely compatible with all smartphones No battery needed, energy efficiency and environmental. More wide viewing angle than flat screen, more comfortable to watch Folding design, lightweight and compact, convenient carrying Gift for kids and the elderly, a good choice for holiday gifts The 12" Curved 3D HD phone screen, offering you the most distinctive visual enjoyment.The phone screen magnifier with adjustable focal length fully fit for most of mobile phone. If the length and height is not enough, they can be adjusted with the phone stand to view screen effect more realistic.Specifications:Color: BlackMaterial: Acrylic + ABSMagnification: 3 timesMagnifier Size: 12 inchItem weight: 304gImportant Reminder:The viewing distance of the amplifier is 1-3 meters.It can't be seen under strong light (ambient luminosity).The brightness of the screen of the mobile phone is brighter and better. These 3 factors are important to achieve the high-definition effect.