... than 60g 4.4-5 hours for work 50inch mp3 glasses/Eyewear video glassesModel No.:VG280(50inch video glasses) ... RM, RMVBAudio formatdisplay music,support MP3, WMA, FLAC, APE, AAC, and PlayFXpicture formatJPEG, BMP, GIF with auto scan and rotate functionColors ... ), built-in batteryBattery DurationAbout4-5 hoursPower Consumption<0.9WConnect with PC High speed USB2.0Sample Rate8KHz/16KHzMax Power Output(L ...