... .I. Product OverviewOptical touch modules (OTP) is a high-precision touch products, OTP use high-speed camera module fit ... the data line is the basic component of the OTP.Structural parts for assembly positioning, dust and water, so ... AA outside the touch action can be set;3.OTP can be waterproof and dustproof, structural design, can ... Android2.3.6/4.0 7. Seven, structure size OTP Optical touch screen ...