... etc. Features: Support multi-touch by pen, finger, and other opaque object.Faster response and higher ... RH, non-condensingPower supplyUSB. Working voltage: +4.75V~+5.25V standard: +5VDC working current: <400mA Power: <1WCalibration9 ... key, etc. Package inside1set touch frame, 1set M2.5 screws, 1pcs USB cable, Mini-CD driver, manualCertificatesCE ... optical multi-touch by pen, glove hand,finger