This document camera powered through the usb attached to the computer. This camera uses our self-developed software. The software This software will be saved in U disk and CD-ROM in the package and sent to you. In addition to the functions described on the web page, this software has many functions for teaching. For example, interactive whiteboard, video recording, split screen (up to four screens for contrast teaching) ect.【PRODUCT IMFORMATION】: -Product Appearance: foldable stand, plastic shell. -Scan Type:Physical objects, test papers, documents, books, magazines, certificates, business card. -Shooting Size: A4. -Scanning Speed: about one second. -Optical resolution: 5 million -Image Color: 24 bits. -Picture Format: JPEG, GIF, BMP, TIF, PDF, TXT, EXCEL etc. -Interface: USB2.0. -Photosensitive Element: CMOS -WORKING VOLTAGE:4.75V-5.25V -Image Control:Brightness Adjustment, color selection, automatic adjustment exposure. -IMAGE PROCESSING:Provides a box selection, rotation, cutting, changing image size, grayscale map, binary map, brightness adjustment, exposure length adjustment, sharpness adjustment, color adjustment, gain control and other common functions. -Uses: family, teacher, lawyer, administration, finance, company. This document camera is only compatible with Windows. 【PACKAGE INCLUDED】: -1*Document camera -1*Warranty Card -1*Certificate of Conformity -1*USB Cable -1*Positioning Pad -1*Software CD -1*Software U Disk (For computers without CD drive)