LCD Screen: 55 inch TFT Screen ratio: 16: 9 Resolution: 1920 x 1080 Display Area: 1210 * 680 Pitch: 0.21 * 0.63 Contrast Ratio: 3500: 1 Brightness: 450cd / m2 Response time: 6ms Viewing Angle: Horizontal / Vertical : 178 ° Backlight: LED backlight cabinet: Surface treatment: imported car metal paint, metal light finish screen protector: glass interface: RJ45 network interface power interface voltage: AC220V ± 10% 50Hz ± 1Hz machine power:> 350W Work Temperature: 0 ℃ ~ + 35 ℃ Humidity: 40% ~ 80% (relative, non-decompression) Speaker power: 2 * 8 ohm / 10W A20 Andrews host motherboard memory clocked 1.0-1.5GHZ: 1GB built-in storage: NAND FLASH 4G (scalable 64G) Operating System: Android 4.2.2 Features: supports portrait and landscape screen layout, each playing area can be combined, can be arranged hierarchically regional free split screen can be a combination of images, audio, video, web, Edit the clock, date, subtitles, mixed material may be different programming to the broadcast table, support programs and broadcast table preview support the timer switch settings, you can set up multi-timed daily, weekly, and daily, weekly. real-time monitoring player Different users can set different playback screen operating authority, to ensure the safety of the use of distributed broadcast management, support for remote or local control, within the purview of the display to edit, modify, and publish support for Android phones were playing end end Post to playbill, playlists and other functions supported formats Video formats supported: MPG, AVI, MPEG, RMVB, MOV ... image formats are supported: BMP, JPG, PNG, GIF, SWF ... Audio formats supported: DTS / AC3 , MPEG1, MPEG2, MP3, WMA ... Office document support: PPT, Word, Excel ... network interfaces and protocols: Network Interface: Wired 10 / 100M (standard), wifi, 3G (WCDMA, TD-SCDMA, CDMA2000) (Optional) Network Protocol: TCP IP / PPPOE / ICMP / DHCP / DNS / FTP / HTTP