... in classroom or conference. Hard ware Specifications:1. Main Camera: 1/2.5inch CMOS, 5 million pixels2. Image resolution:2592x1944, ... 2048x1536,1600x1200,1280x1024,3. Capture size: Max. A3 ( 420x297mm)4 ... . USB2.0 interface6. Auminum alloy case Software Speicifications: 1. Main functions: Scanning, File editting, OCR,Video recording ...