1.MP3 GLASSES 50 inch wireless vide glasses 2.The built-in 2 GB,mp5 3.Weighs less ... 4.4-5 hours for work 50inch mp3 glasses/Eyewear video glassesModel No.:VG280(50inch video glasses)Accessories: gift box, USB charger, AV ... , e-book,support MPEG, AVI, RM, RMVBAudio formatdisplay music,support MP3, WMA, FLAC, APE, AAC, and PlayFXpicture formatJPEG, BMP, GIF with ...