Nintendo DS

The Nintendo DS (sometimes abbreviated to DS or NDS) is a dual-screen 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 touch screen. The Nintendo DS also features a built-inmicrophone 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, which launched later in the console's lifespan. This was the first Nintendo console to be released in North America prior to Japan.

The Nintendo DS features stereo speakers providing virtual surround sound (depending on the software) located on either side of the upper display screen. This is a first for a Nintendo handheld, as the Game Boy line of systems has only supported stereo sound through the use of headphones or external speakers. A built-in microphone is located below the left side of the bottom screen. It has been used for a variety of purposes, including speech recognition (Nintendogs, Brain Age: Train Your Brain in Minutes a Day!), chatting online between and during game play sessions (Pokémon Pearl, Diamond, and Platinum) that require the player to blow or shout into the microphone.

Nintendo DS games use a proprietary solid-state ROM "game card" format resembling the memory cards used in other portable electronic devices such as digital cameras. Cards currently range from 64 megabits to 4 gigabits (8–512 megabytes) in size. The cards usually have a small amount of flash memory or an EEPROM to save user data such as game progress or high scores. However, there are a small number of games that have no save memory such as Electro plankton. The game cards are 35.0 mm × 33.0 mm × 3.8 mm (about half the breadth and depth as Game Boy Advance cartridges) and weigh around 3.5 grams (1/8 oz.).

On March 2, 2006, Nintendo released the Nintendo DS Lite,  a redesign of the Nintendo DS, in Japan. It was later released in North America, Europe, and Australia in June 2006. The DS Lite is a slimmer and lighter version of the Nintendo DS and has brighter screens. Nintendo of America refers to the older model as the "original style" Nintendo DS.