This entry pertains to the Nintendo DS portable console. Since the console is not region locked, it pertains to all regions in which the system was sold.
From Wikipedia:
The Nintendo DS (ニンテンドーDS?, sometimes abbreviated to DS or NDS) is a handheld game console developed and manufactured by Nintendo. It was released in 2004 in Canada, the United States, and Japan. The console features a clamshell design, similar to the Game Boy Advance SP, with two LCD screens inside—with the bottom one being a touchscreen. The Nintendo DS also features a built-in microphone and supports wireless IEEE 802.11 (Wi-Fi) standards,[5] 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, which launched later in the console's lifespan. The Nintendo DS is the first Nintendo console to be released in North America before Japan.