... -riot, Vandal proof and other functions. 2. Touch screen resolution:4096*4096 Surface Hardness: Mohs' hardness rating of 7 3. Service life ... shows: 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 magnetic ...