The Pronto! 18 V4 is a braille notetaker and voice output electronic organizer designed for use by individuals who are blind or have low vision.. The Pronto! 18 features an 18-cell refreshable braille display, an 8-button ergonomic braille keyboard, clear sounding speech output, and a comprehensive suite of productivity applications that help make life easier at home, school, and at work. The device is lightweight and only about 6 inches wide, 3.5 inches deep, and just under an inch high.