... is a kind of 2-in-1 scanner, it works as handy scanner when use it alone and it ... also works as an automatic feeding scanner when use with the docking stationWith batteries & SD ... 3mmUSB port USB 2.0 high speed Power source Scanner:3xAAA batteries or USBDock:6xAA batteries or USB 5VUSB ... ROM or above List of accessory USB cable, Scanner, Docking station, CD, User Manual ,Pouch auto feed ...