Description: The mobile phone screen amplifier is a high-definition screen amplifier with audio. The lens uses Fresnel Optical and Alec high-definition lenses to make the viewing screen realistic and full of three-dimensional effect. Added speaker with diaphragm, which solves the problem of small sound of mobile phone. Whether watching TV or listening to music, you can experience the high and low sound effects of theater diaphragm sound at any time. In terms of appearance design, the L8 amplifier has specially designed the light blocking function, which solves the visual fatigue caused by light reflection when watching the show. The light blocking plate can be adjusted in height. At the same time, this light barrier is also a screen protection cover, so you don't have to worry about the screen being easy to spend. A photo can also be affixed to the light barrier, which is usually a desktop photo frame when not in use, which occupies no space and plays a decorative role. Specification: Material:Acrylic Applicable Model:Universal Suitable for mobile phone screen size:8.5" Support battery model:18650 Version:4.2 Package Includes: 1 Piece Mobile Screen Amplifier