Features:1) It is a great supplement and extending device of the network set-top box and bring you wonderful experience of watching movies and playing games with this High quality google cardboard glasses. It offers you super 3D picture effect and wonderful feeling.2)Materials: High quality google cardboard glasses uses ABS and 42mm spherical resin lens material without stimulation plastic sheet,Website: , environmental. Flexible and adjustable headband is suitable for different people. You will not feel visual fatigue and dizzy even you use it for a long time because of the resin lens. 3)Simulating Viewing Distance: Offer you a 1000 inches big screen at the distance of 3m. Easy to put your smart phone into the 3D glasses (Easily pull the smart phone storage box out, the put your smart phone in it). Perfectly suitable your face when you wear the High quality google cardboard glasses.4)Adjustable pupil distance and sight distance, satisfying different groups of people. (Optical Axis Sliding Control function: You can slightly adjust the position of the spherical resin lens through moving the button on the top of the 3D VR GLASSES so as to get a better experience of watching movies.) Greatly enjoy a private visual feast comfortably and convenient to use, allowing you watch at anytime anywhere whether sitting with this High quality google cardboard glasses .5)lying or standing as you like, no need any software; it is a great companion for traveling or staying house.Suitable for almost all kinds of smart phones (Android / IOS, etc) that screen between 4.7~6.0 inches. Both sides holes of the High quality google cardboard glasses is specially designed for the headset / data / charge cable, letting you charge your smart phone (You had better not charge your phone during enjoying movies) With compact portable design, easy to carry.Specification:Colorwhite ,BlackMaterialABS+Resin Lens+Nylon+PU+CottonVisual angle92~98 degreesSuitable4.0~6.0\" smart phoneItem size17.5x12.5x9.7cmItem weight200gramsSupport systemIOS & AndroidPackage size20x14.5x14.5cmPackage weight305grams