... Anti-riot, Vandal proof and other functions. 2. Touch screen resolution:4096*4096 Surface Hardness: Mohs' hardness rating of 7 ... : 1,Size for TFT LCD 2,Touch screen 3,Infared touch screen 4,Host computer 5,Inner speaker 6,Interface ... : USB 2.0, RJ-45 7,Dual screen 8,RF card card reader 9,2-3 track ... Web camera 23,OS : Windows XP 24,Input voltage 110±10% 50Hz±1Hz 25,Input voltage 220±10% 50Hz ...