This pen does more than just write messages. You can also display your own messages on the scrolling LED display on top of the pen. You can easily program and store up to 4 messages, with each message up to 16 characters. Just use the buttons on the side of the pen to input and change messages! Uses 3 replaceable AG13 batteries (included). Pen comes in assorted solid colors as pictured (sorry, no choice of color), all with the same red LED display.