Game Boy Advance SP
In early 2003, Nintendo introduced a new form-factor for the handheld, known as the Game Boy Advance SP (model AGS-001). The redesigned unit resembles a pocket-size laptop computer, including a folding case approximately one-half the size of the original unit. It also supports a rechargeable lithium ion battery, a significantly brighter LCD screen, and an internal front-light that can be toggled on and off. The redesign was intended to address some common complaints about the original Game Boy Advance, which had been criticized for being somewhat uncomfortable to use, especially due to an overly dark screen. Around the same time as the release of the Game Boy Micro, Nintendo released a new backlit version of the SP (model AGS-101) in North America (commonly referred to as the "GBA SP+", SPII, or SP2). The switch that controls the light now toggles between "normal" (which itself is already brighter than the original Game Boy Advance SP's screen), and "bright", an intense brightness level similar to an LCD television set.