Ultra-Clear Mobile Phone Screen Magnifier The screen uses optical HD zoom technology to enlarge HD content by 3 to 4 times, reducing visual fatigue from focusing on small screens for long periods. High Quality and Non-Slip Design Made of ABS and acrylic lenses with a non-slip phone support. The magnifier can reduce resolution, so it is recommended to use in low light conditions; the best viewing distance is about 1.5 meters. Compatible with Most Mobile Phones Designed for most smartphones. Put your phone in the screen amplifier to easily enjoy a home theater like viewing experience. Folding Mobile Phone Holder Lightweight and portable with an adjustable holder, suitable for indoor use, camping, travel and leisure. Use scenarios - At home: watch videos or stream movies on a larger screen for a clearer view. - While traveling: convenient entertainment on planes, trains, or buses. - Outdoors or camping: easy viewing for maps, tutorials, or video calls away from home.