ゲームボーイアドバンスSP
First released in Japan on February 14, 2003, the Game Boy Advance SP—Nintendo model AGS-001—resolves several problems with the original Game Boy Advance model. It featured a new smaller clamshell design with a flip-up screen, a switchable internal frontlight, a rechargeable battery, and the only problem is the omission of the headphone jack, which requires a special adapter, purchased separately. In mid-September 2005, around the same time of the Game Boy Micro's release, Nintendo released a significantly improved Game Boy Advance SP model known as Nintendo model number AGS-101 in North America, that features a high quality backlit screen instead of a frontlit, similar to the Game Boy Micro's screen, but larger.