Snakebyte Wii ( also works with WiiU) - Motion XL+ Starter Pack - white

The Remote XS Controller supports up to four units for multiplayer gaming, includes an integrated speaker, built-in memory, and strong vibration effects. The Wired Motion XS Controller adds two buttons, an analogue stick, and a motion sensor to the Remote XS. The Motion XL+ enhances precision for specific games.

• The description claims the Remote XS Controller can be used with up to four units simultaneously.