1、A4 Photo Format: USB book scanner for Windows XP 7 8 10 11 and for OS X 10.11 or higher. Designed for A4 (8.27x11.75in) documents, anything smaller than A4 size can be scanned with super fast scanning speed, less than 1 second per page. 2、Free Scaling: Through the software and video Visualizer, it can realize dynamic and immediate rotation and scaling according to 1% gradient of the lecture, and the video display content can be freely scaled up to 1500% according to 1% gradient in real time with the mouse point as the center. The screen can be rotated steplessly or by 90 degrees. 3、HD 8MP: HD 8MP PX camera with USB mode captures images in near 4K quality (3264 x 2448). Video recording in HD (1920 x 1080 30 FPS). Connect to a computer, for iOS, for Android devices, for iOS TV, projector, TV or monitor. 4、Multifunction: Document camera is capable of video and physical display, with software functions such as dynamic whiteboard annotation, class recording, comparison teaching, scan management, quick capturing, picture in picture, etc. 5、Scope of Application: USB document camera can be used as a document scanner for scanning documents and converting, OCR files. Capable of scanning over 180 languages and converting to JPG, PDF, searchable PDF, Word, Excel. Item Type: 8MP Document Camera Material: Aluminum MG Alloy, ABS Clarity (Resolution): 8MP PX (3264x2448) Lens Photo Format: A4 Button: The Chassis Supports 5 Touch Buttons, Can Be Directly to the Booth Operation Zoom: Support 1% to 1500% Times Stepless Digital Zoom Smoothness: 8MP HD, Dynamic Rate Measured 10 to 15 Frames Per Second, Rather Than False Label or Theoretical Speed Lens Resolution: ≥ 1000TV lines Output Format: MJPG, YUY2 Minimum Illumination: 10Lx Recommended Illumination: 50-80Lx Flicker Control: 50HZ or 60HZ USB Transmission Specifications: High speed USB 2.0 Interface Drive Free Support System: For Windows XP 7 8 10 11 and for OS X 1 x 8MP Document Camera 1 x USB Cable 1 x CD 2 x Key 4 x Screw 4 x Expansion Tube