【12 Inch Screen Magnifier With Bluetooth Speaker】- 2020 new upgraded 12'' 3D screen amplifier can magnify your phone screen 2-4times, fully fit the curvature of the human eye, more comfortable to watch. The screen magnifier will reduce the discomfort and visual fatigue caused by long-term focus on the small screen, and can effectively reduce the radiation. 【Adjustable Focal Length & Portable】- The phone screen magnifier with adjustable focal length fully fit for most of mobile phone. Folding design, lightweight and compact, convenient carrying, suitable for indoor, office, desktop, travel, journey. Free your hands when using this cell phone screen magnifier to watch films and videos , enjoying your time everywhere. 【Hight Quality Fresnel Lens and HD Zoom】- The upgraded 3d phone projector adopt fresnel lens ，HD zoom optical and blue-ray radiation protection technology, to provide high-definition image and reduce visual fatigue,the screen is more clear than other screen at the market. Even if you force the screen to flatten, but when you let go,The screen will still be restored to a curved screen.