... mp3 Glasses 72 inch 3d video galsses 2:16:9Widescreen display 3.4-5 hours for work 4.The built-in ... 2 GB mp3 Glasses 72 inch 3d video galssesModel ... support MPEG, AVI, RM, RMVBAudio formatdisplay music,support MP3, WMA, FLAC, APE, AAC, and PlayFXpicture formatJPEG, ... 2m distance)Battery3.7V (900mAh), built-in batteryBattery DurationAbout4-5 hoursPower Consumption<0.9WConnect ...