The Nintendo DS (sometimes abbreviated NDS or DS) is a handheld game console developed and manufactured by Nintendo, which was released in 2004 in Canada, U.S., and Japan. The console features a clamshell design, similar to the Game Boy Advance SP, with two LCD screens inside - one of which is a touchscreen. The Nintendo DS also features a built-in microphone and supports wireless IEEE 802.11 (Wi-Fi) standards, allowing players to interact with each other within short range (10–30 m, depending on conditions) or online with the Nintendo Wi-Fi Connection service. This was the first Nintendo game console to be released in North America prior to Japan.

http://www.teachme-buzz.blogspot.com/In improved edition called the DS Lite was released in 2006. The term "Lite" refers to it having brighter screens, smaller size and lower weight, it still has the same features as the original