Featuresr comprehensive upgrade and fine workmanship a small step forwordr weight down to about 183 grams wearing a light and comfortable without pressurer high class dance dragon cloth material durable to user support 3d imax cinema 9 kinds of models for your choice to viewing panorama videos and imager adopts aspherical lens ultra small tolerance improve picture clarityr open mobile phone compartment plug convenient to user wide compatiblity suitable for 47 55 inch smartphone