... video input 4.Battery Duration:About 2-3 hours favourable hd video glasses 320A with 72 inch and with AV video ... Bitrate64Kbps-320KbpsFrequency Response20Hz-20KHzSNR>85dBAudio Playback Distortion0.03%Language Zh, En, De, It, Pt, NL, Fr, Es, PL, Ru,Tr,Da ... x d185Working temperature-5°C - 50°CCertificateCE/RoHS/FCC favourable hd video glasses 320A with 72 inch and with AV video ...