... : 2-3 hrs Frequency Response: 20Hz-20KHz Built-in 4GB 52" Virtual Display Digital Video Eyewear Glasses Portable Movie Cinema ALL ... , Slides, Auto-browse.Multilanguage support:Zh, En, De, It, Pt, NL, Fr, Es, PL, Ru,Tr,Da, Cs, Ja,Sk, Kr ... AC Adaptor 1 x User Manual 1 x Carry Case 52" Virtual Display Digital Video Eyewear Glasses Portable Movie Cinema ALL ...