1. Mobile phone screen can be magnified 3-4 times, picture clear and vivid, dynamic feeling stronger! 2.Suitable for all kinds of mobile phones and all various occasions 3. Use HD amplification optical technology,no power-driven, no-cost, energy-saving and environmental protection 4. Reduce the eyes fatigue when you watch videos on the phone. 5. Folding design, small volume, convenient carrying on business travel. 6.Enlarge the phone display, to watch the bigger screen of 3x ~ 4x
