Generic Mobile Folding Cell Phone Screen Magnifier

: 1. HD display screen: Fresnel mirror screen adopts optical HD zoom technology, which can enlarge HD by 3 to 4 times, effectively preventing radiation generated by mobile phone. 2. Sliding design: stretch the silicone round on, and then the screen appears. This sliding screen mode helps to protect the screen and is more suitable for transportation. 3. Simple operation: the screen amplifier doubles the screen size, so you can make the most of movies and videos on your HD smartphone. Add a Bluetooth-compatible keyboard and use it to play HD