This product is a game controller that is compatible with SFC compatible consoles and the nostalgic "Super Nintendo Entertainment System" consoles. This product can be conveniently used as a substitute or spare for the controller that comes with the genuine product or the SFC compatible console. In addition, this product is equipped with a "continuous fire function" that allows you to set each button of "ABXY" to two different continuous fire speeds as needed before starting a game or during a game. *This product has been tested on Columbus Circle's SFC compatible consoles (16-bit Compact, Retro Combo, Retro Combo HD, Retro Combo RED, Retro Combo REDV2). *Each button of ABXY can be set to no continuous fire, about 8 continuous fires per second, or about 16 continuous fires per second.