The Nintendo Switch is a video game console released in 2017. It combines handheld and console features. You can use it on a large TV screen, or remove it from its "dock" to play in handheld mode like a Nintendo 3DS.
Following on from Nintendo's Wii and Wii U console, it offers small wireless controllers that are motion sensitive. It also has a touch screen that can be used in handheld mode.
Although it's not backwards compatible with Wii U or Wii games, many of these are being re-released on the system. It is also a good machined to access lots of smaller games made by independent developers.