Portable visual presenter, PH-3800,digital display,portable document camera ItemPH-3800Image systemZoom300× TotalFocusAutoLensAutoDemonstrationImage Sensor1/3" Image SensorTotal Pixels5,000,000Resolution≥700TV lineSNR≥50dBWhite BalanceAutoMultimedia FunctionFunctionColor/B.W, negative, mirror, text/graphic, brightness control,..