Description: With the popularity of smart phones, more and more people will use the mobile to watch movies, etc.; While the small phone screen makes people feel very uncomfortable to watch for a long time.It also takes great damage to their eyes.Therefore,this products will help they avoid these problems. Material: Silicone, Acrylic, ABS Magnification: 3x-5x Screen Size: 7.9 inch Size: 18.0 × 14.2 × 1.5 cm Compatible with: all mobile phone 1.It uses high-definition optical technology France Fresnel that it makes the screen zoome in three times and the picture is more clear and vivid, dynamic feel stronger! 2.It’s simple, elegant, light weight, small size and easy to carry.Suitable for use in a variety of occasions – indoor, camping, traveling, leisure and so on. 3.It uses high-definition optical amplification technology, not power-driven, energy-saving and environmental protection. 4.Especially watch 3D movie in the phone,the stereo effect is stronger. It can be used as magnifying glass because of its large area enlarged. It’s more suitable for the elderly to read, newspaper, read the news online. Package Includes: 1 x Magnifier Folding Portable Screen HD Amplifier For Mobile Phone.