Super Thin Mobile Phone Amplifier! High quality of Magnification. Amplifier will relieve and help prevent visual fatigue. It effectively prevents the radiation generated by the mobile phone from harming the human body. Easy to use and incredibly portable mobile phone projector. Easy to carry, it is lightweight and foldable so that you can take it anywhere you go and for any occasion. No battery needed, so you never have to worry about recharging your screen magnifier.