Jgmax VR Headset - 3D VR Glasses - Virtual Reality Headset for iOS and Android Smartphones within 3.5-6 Inches High Precision with SHOCKING 3D Immersive Experience,More Comfortable and Stable Knobs Workable with smartphone within the size range of 4.0-5.5inches,no app is needed KnobsAdjustable straps for flexible wear,reasonable Lighter Bare Weight design of 280g Workable with smartphone within the size range of 4.0-6inches,no app is needed Pupil Distance (PD) and Focal Distance (FD)can adjust a range of 55mm - 75mm, top wheel for sight distance adjusting Magnet-Adsorbed easy removing front cover, you can charge and use earphone.Myopia can directly wear glasses to watch too