... , with the FCC, GLASS B & CE Certificate2, touch precision more than 4096x 40963,surface anti-abrasion & hardening ... USB interface10, high stability, no drifting, keeping touch accuracy without long time use11,totally enclosed environment ... High recognition rate Hanwang touch screen handwriting software13,somatological appearance design Kiosk cabinet14, Infrared induction principle15,Operation system: ...