In 1996, Nintendo released the Game Boy Pocket: a smaller, lighter unit that requires fewer batteries. It has space for two AAA batteries, which provide about 10 hours of game play. The Pocket has a smaller link port, which requires an adapter to link with the older Game Boy. The port design is used on all subsequent Game Boy models, excluding the Game Boy Micro. The screen was changed to a true black-and-white display, rather than the "pea soup" monochromatic display of the original Game Boy. The first version, which was silver, did not have an LED to show battery levels. This was soon added due to public demand, along with new Game Boy Pocket units of different colors, some of them new to the Game Boy line. Also included was a limited-edition metallic Ice Blue unit, among other limited-edition Game Boy Pockets.