The battery-powered infrared printer is a revolutionary companion for your new calculator. Because it operates with an invisible infrared beam, no cord is necessary to connect it to the calculator. Producing hard copies in the field or in your office could not be easier. And this improved version offers easier-to-read output and automatic shutoff for extended battery life.Operation of the infrared printer is easy, too. Simply aim your calculator at the printer (from up to 18 inches away), send print instructions and you get a neat, clean copy of your calculations. You can print a complete record of your work, or select and print only what you need. Just four AA alkaline batteries give the infrared printer go-anywhere portability. Or to extend battery life, plug in the optional ac/dc adapter.This printer comes with four AA alkaline batteries, one roll of printer paper and Users Guide.