Ergonomically designed for better grip and control. Precise button mashing action with complete wireless freedom in 5-7m. Play from up to 20 feet away and allows for easy access to game selection menu directly from your controller to avoid lag or disconnection. More powerful function. Break out the traditional "A+B" button, add "A+" and "B+" button to let you experience more wonderful and excitement. More convenient. Press "SELECT" and "START" simultaneously can return the main menu directly. Don't need press the "RESET" button on the host. It can also be plugged into a Wii or Wii U Remote controller, so you can also use it with Virtual Console NES games on your Wii or Wii U console. But it can only play some classic games, like Super Mary, it can't support somatic games.