1.Retro TV mobile phone holder adopts high-definition optical lens technology, which can magnify the picture in the mobile phone by 3 times, the picture is clearer and more vivid, more dynamic, reducing eye fatigue, and the mobile phone screen magnifying glass effectively protects the eyes. 3.The mobile phone amplifier is specially added with a mobile phone amplification effect to solve the problem of insufficient volume of your mobile phone. It is suitable for indoor, outdoor, beach and other places. 5.The magnifying glass of the smartphone is great, especially when watching 3D mobile movies, it has a stronger three-dimensional effect! 4.The structure of the retro TV mobile phone bracket has innovated many technologies. The product has a simple appearance, smaller size, and more convenient to carry. The smart phone magnifying screen is more suitable for all kinds of mobile phones. 2.The lens is an astigmatic optical lens, which is safe, energy-saving and environmental protection. The phone holder adopts a fully enclosed design to effectively prevent screen reflections.