... normal pen and other object 3. Support Linux, Mac OS, WinXP, Win7, Win8, Vista D-Rate Optical Imaging Multi-touch Frame ... education, commend centers, board rooms, etc. Features: Support multi-touch by pen, finger, and other opaque object.Faster response and higher ... FCC, ROHS. Warranty 2 year parts and technical support Optical multi-touch by finger, normal pen and other object (30inch -110inch size)