120 degrees largefield of view, adopts Japanese imported PMMA lens, with 35mm focus showing areal viewImmersive soundand 3D vision are integrated, provides an excellent experience40mm diaphragm adopts PET material, more powerful soundSupport one key answering phone calls and volume controllingSuitable for people within 0 - 800 degrees myopia, and 0 - 400 degree hyperopiaAdjustable pupilfit for different usersVery good in heat dissipationLightweight design for long time comfort, reduces eye fatigueAdjustable headband adds no burden to your head Built-in stretchable earphones, with soft memory foam for noise canceling