Features: Material: ABS spherical resin lens,Website:://.cbtgdesign.com,more clear and three-dimensional Virtual screen: 3.5-6'' LCD Screen inch mobile phonesResolution: Based on the film sourceColor Bit: Based on the film sourceScreen Type of phone : 3.5-6 inchVideo : Left-right 3Dfocal distance :can be adjustedPupil Distance :can be adjustedMax size fit : 15.4 cm x 8.2 cm Myopia: less than 600 degreeOther Features Head girth: 20~40cmDimensions: 200*142*150mmNet Weight : 420gGross Weight: 560gCompatibility: iPhone 4, 4s,5,5s,6,6 plus, Samsung Galaxy S4 / S5, Google Nexus 4/ 5/ 6, HTC One, Xiaomi Mi3