Magicbox 3D VR Box V2 Glasses Virtual Reality Headset for 4.5-5.5 Inch iOS Android Smartphone with Bluetooth Remote Contoller Suitable for playing the videos, movies or games of 3D split screen. Compatible with cell phones (Android or IOS) size between 4.5" and 5.5" One button to adjust the pupillary distance and object distance to avoid the visual fatigue or dizzy. Fit for myopia people fewer than 600 degreed without taking off glasses when watching. Focal length: 70-75mm, diameter:42mm; FOV: 70 degree Adjustable range: 65-75mm; Interpupillary distance: 58-72mm