The Nintendo 64 Rumble Pak in Gray (NUS-013) is an external attachment for the Nintendo 64 console, allowing for one player to experience vibrations and movements in-game. Made of plastic, this rumble pack was manufactured in 1996 by Nintendo and is compatible with various accessories, game cards, and memory cards. With a weight of 0.1 lbs, it offers a wireless or wired connectivity option by clipping onto the controller with matte/anti-glare features for a seamless gaming experience. Perfect for enhancing gameplay and adding an extra layer of immersion to gaming sessions on the classic Nintendo 64 console.