1.Mobile wheels easy to move 2.Water proof 3.Dust proof 4.Anti-Oxidant shell Panel Size55 inchTypeweiwen004Panel Resolution1920*1080View Angle88/88/88/88(L/R/U/D)Color16.7MBrightness400cd/m2Contrast Ratio2000:1Response Time6.5ms3G Model WCDMA/CDMA2000WIFI300M bit/sBluetoothVersion 4.0 Support Audio/Video Coding FormatMEPG4(AVI, DIVX, XVID,ASP),MEPG2(DVD, VOB, MPEG)MEPG1(VCD, DAT, MPG),MP3,JPG , ...