Smartphone becomes part of our life because of universal functions like video, music, phone call and more. However, both of them lack eye protection. How to solve the radiation problem from the smartphone screen? This 3D HD screen amplifier might just be the solution. It can release the eye fatigue after long-term watch and also enlarge the screen to solve the reading difficulties because of small fonts. What you need to do is to put the thing you want to enlarge in the back, this amplifier will enlarge it into 3 to 5 times immediately. Because it’s foldable, it’s very easy-to-use and portable. Take it everywhere when you need it!