Taken from Wikipedia:
The Power Glove (1989) is a controller accessory for the Nintendo Entertainment System designed by the team of Grant Goddard and Sam Davis for Abrams/Gentile Entertainment, made by Mattel in the United States and PAX in Japan. Though it was an officially licensed product, Nintendo was not involved in the design or release of this accessory. It was the first peripheral interface controller to recreate human hand movements on a television or computer screen, and was commercially successful as almost 100,000 were made and sold in the U.S. alone.[1] However, it is often derided by gamers due to its imprecise nature of controls, and the fact that basic actions such as jumping or using an item may be very difficult or impossible to pull off reliably.