VR Headset, GMYLE Google Cardboard VR Virtual Reality 3D Glasses with Adjustable Focal/Pupil Distance for 3.5" to 6" Smart Phone(Sliding Clamp Mount) Convenient control pad to Adjust the pupil distance and sight distance (adjustable on pupil distance and object distance). Large size of lenses to get super wide viewing angle and perfect 3D experience. Secured clamp mount design for holding up your smart phone in place, prevent your phone from sliding. Made of high quality ABS and excellent workmanship. Comfortable headband, breathable foam protector, excellent heat dissipating design.