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HD display screen: Fresnel mirror screen adopts optical HD zoom technology, which can enlarge HD by 3 to 4 times, effectively preventing radiation generated by mobile phone. Sliding design: stretch the silicone round button, and then the screen appears. This sliding screen mode helps to protect the screen and is more suitable for transportation. Simple operation: the screen amplifier doubles the screen size, so you can make the most of movies and videos on your HD smartphone. Add a Bluetooth keyboard and use it to play HD. High quality materials: ABS plastic and Fresnel mirror, strong and durable, even higher definition. Raise frame adjustable angle of view. Non slip silicone pad protects and stabilizes the phone. Excellent compatibility: whether you are for or an phone, the projector screen of the magnifying glass can be used with your device. 3D visual pleasure can avoid visual fatigue. Specification: Material: ABS plastic + Phoenix lens Magnification: 3-4 times Functions: amplification, eye protection, radiation protection, stand holder Product size: 260 * 174 * 9mm Color: Black, White, Red Packing list: 1*mobile phone screen magnifying glass(Excluding mobile phones and other props)