The Super Scope, or Nintendo Scope in Europe and Australia, is the official Super Nintendo light gun. It was released in the European and North American markets, with a limited release in Japan due to a lack of consumer demand. It is a wireless gun and uses an infrared receiver which plugs into the right port of the console, comparable to the Menacer for the Sega Mega Drive/Genesis. It has two action buttons, a pause button, a power switch and is powered by six AA batteries.
The gun body is a bazooka-shaped device, just under 2½ feet long. Located about midway on top of the barrel are two buttons, the orange "Fire" button and the grey "Pause" button, and a switch used to turn the Super Scope off or select regular or turbo mode. In the middle on either side are two clips for attaching the sight. On the far end of the gun, on the bottom, is a six inch grip with another button labeled "Cursor".
Source: Wikipedia, "Super_Scope," available under the CC-BY-SA License.