Feature >72 inch virtual display, none radiation >Enjoy movies, music, game, photos and favourite books everywhere you go >User friendly operatiobuttofor easy and quickly control >Unique non-spherical optical system, anti-fatigue >Built-in 4GB memory for mega storage and play of media files >Sleek ergonomical design, comfortable wearing, light weighted >Support multimedia video format like MPG, AVI, WMA, FLV, RM/RMVB, DV, etc. >Quality stereo headset enable user to enjoy hi-fi dynamic sound >Micro SD card slot support up to 32GB Specificaion >Primary function: Digital mobile theatre >Virtual screen: 72 inch (16:9) >Display resolution: 432x240 310K pixels >Memory: Built-in 4GB, with TF card slot, support 32GB Max. >S / ratio: More than 85db >Video input: Composite video >Audio distortiodegree: 0.03% >Operating system: Windows 2000/XP/Vista/Win7 >Battery parameters: 3.7V Li-polymer battery >Power consumption: 900mW >Battery capacity: 900mAh >Power duration: 4 - 5 hours >Sample rate: 8KHz/16KHz >Audio output Max.: 10mW + 10mW (32 Ohm) >Mp3 bit rate: 64K bps, 320K bps >WMA bit rate: 64K bps, 384K bps >Frequency response: 20Hz - 20KHz >Picture format: JPEG, BMP, GIF >Ebook format: TXT >Music format: MP3, WMA , WAV, APE, OGG, FLAC, AAC >Video format: XVID, DIVX3/4/5, AVI, Flash, MPG 1&2, WMA, FLV, RM/RMVB, DV >Working temperature: -5 - 40 degrees of Celsius >PC/Laptop connection: USB 2.0 high speed >OSD language: Simplified Chinese, English, French, Dutch, Italian, Spanish, Portuguese, etc., over 20 languages >Dimensions: 155x35x32 mm >Weight: 90g Package List >1xVideo glasses >1xAC adapter >1xEye patch >1xLi-iobattery >1xUSB wire >2xAV wire >1xCarry case >1xuser manual