Virtual Screen: 52 inch 4:3 large screen (at 2 meters’ distance);
Resolution: 320 * 240
Color Depth:  input 24-bit
Optical visible Angle: 26 degree angle
Battery: Built-in polymer battery, 3.7V 1000MAH
Maximum Power:  700 mW
Battery Duration: 2-3 hours
Power consumption: < 450mWa
Sample rate:  8KHz / 16 KHz
Video Input:  mixed video input
Video format:     NTSC / PAL / SECAM automatic selection
Earbuds:  double-channel stereo earbuds
MP3 bit rates: 64K bps - 320K bps
WMA Bit Rate: 64K bps - 384K bps
Frequency response:  20Hz to 20KHz
SNR  >85dB
Viewing angle:  controllable degree is -15 degrees to 15 degrees
Net weight:  60g (not including earphones)
accessories: one pair of glasses, one video display module, two nose clips, one for monitor module, one for polarized glasses,one travle cases, USB Home Charger,AV cable and earphones