... With waterproof, Dustproof, Anti-riot, Vandal proof and other functions.2. Touch screen resolution:4096*4096 Surface Hardness: Mohs' hardness rating ... 5. Static protection: Meet EN6100 standard.6. Mini touch point:2.5mm7. Scan rate: 50 scans/m8. Noise: NO9, Packing:Seaworthy packing ... ,Infared touch screen4,Host computer5,Inner speaker6,Interface : USB 2.0, RJ-457,Dual screen8,RF card card reader9 ...