47-inch LCD interactive whiteboard

Date: Model CTV4720 LCD screen size 47 inches screen ratio of 16: 9, Wide SXGA pitch 0.76125 (H) x 0.76125 (V) Resolution 1920 x 1080 Viewing angle 176 degree (H): 176 degree (V) Brightness 500 cd / m Contrast 4000: 1 5ms response time maximum color 16.7M horizontal scan rate of 30KHz-80KHz vertical scanning rate 60-75HZ Host Configuration CPU brand Intel CPU Model G630 2.7G processor motherboard chipset Intel H61 system bus frequency of 533MHz memory 2G hard disk 320G graphics models Intel GMA X4500 WI-FI 150Mbps AC'97 sound camera no optical drive DVD-RW (tray) optional network built Realtek RTL8111B / C 100M Other interfaces RS232 / 4 * USB2.0 / RJ-45 / headset / microphone TV systems TV color systems PAL / SECAM / NTSC television sound system B / G, D / K, I, L / L, M / N Languages: English, Spanish, Russian, French, Italian sound system output power 10W x 2 3D graphics engine common mode RF input (TV) have (ATV, DVB-T) S-Viseo have VGA inputs have AV inputs have HDMI inputs have YPbPr have other functions, NICAM supply voltage range of AC 110 ~ 240V-50 / 60HZ Environmental Operating temperature -20 ℃ -60 ℃ Operating humidity 20% -80% RH Storage temperature -20 ℃ -60 ℃ Storage humidity 10% -75% RH Packing size 1170 * 870 * 355 NW 50KG GW 53KG infrared touch system (4096 * 4096) or optical (32767 * 32767) Price (RMB)