1).Advanced Micro FLCOS screen, no radiation, no eye injury 2). 40 inch: 230,000 True Color TFT color display ,80 inch: 922,000 True Color TFT Color Display 3).Perfect illustration of the end product quality screen : VDD / DVD, Mp4, computer, X-BOX, PLAYSTATION, XBOX, 3G mobile phone display terminals,the standard TV / AV interface, enjoy high quality images, super source of audiovisual programs, supporting digital TV and portable display device.It can be also used as a assistant audio-visual tools in conference. 4).Unique non-spherical optical system pair 320 * 240 (QVGA) or 640 * 480 (VGA)resolution display with users left and right eyes; visual perception of 40 inch or 80 inch super video enjoyment from 2 meters 5).Three video standard options: NTSC / PAL / SECAM 6).Low-power consumption, LV-QVGA001 can be used for 8 hors when battery full charged;LV-VGA001 can be used for 4-5 hours when battery full charged 7).2.0 channel hi-fi stereo sound effect 8).Using environmentally-friendly materials, human engineering design, people who wear glasses are not affected, and it also can be used as a goggles with anti-fatigue patented technology, light weight and easy to carry.