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. 2. Materials: Uses 40mm aspheric surface resin lens material without stimulation plastic sheet, environmental. 3. Offers you super 3D picture effect and wonderful feeling. 4. Simulating Viewing Distance: Offer you a 1050 inches big screen at the distance of 3m. 5. Easy to put your smart phone into the 3D glasses (Easily pull the smart phone storage box out, then put your smart phone in it). 6. Perfectly suitable your face when you wear the VR BOX 3D Glasses. 7. Flexible and adjustable headband is suitable for different people. 8. You will not feel visual fatigue and dizzy even you use it for a long time because of the resin lens. 9. 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 VR BOX 3D Glasses so as to get a better experience of watching movies.) 10. Greatly enjoy a private visual feast comfortably and convenient to use, allowing you watch at anytime anywhere whether sitting, lying or standing as you like, no need any software; it is a great companion for traveling or staying house. 11. Suitable for almost all kinds of smart phones (Android iOS, etc) that screen between 4.5~6.0 inches. 13. With compact portable design, easy to carry.