... panel 1.with controller 2.high quality 3. 0.4mm 8.4"8.9"10.4"12.1"Flexible film ... to film 4 wire resistvie touch ... 90%Life span: (1) knock type: >1milion times (2) strokes type: >100,000 timesB. Mechanical ProperitesOperating pressure: ... equipment, mobile phone, PDA, FHKD(VMIC, CRESUN), learning laptop, Point of sale, kiosks, voting machines, financial devices ...