Electronic Pen Holder works with special dry-erase markers on Panasonic UB Series Panaboards to complete your interactive experience. Combined with these dry-erase markers, Electronic Pen Holder can be used just like a mouse to control all computer applications. Meeting notes & drawings can be saved to the computer, & then printed or emailed for easy distribution. Easy-to-use, colorful electronic pens can help emphasize critical items. Simply write your notes over the projected image. This can help you focus on important words to emphasize the critical issues. Battery-powered pen holder runs approximately 48 hours on one set of two Panasonic Pro Power AAA batteries.