The Freedom Pad is a third party accessory that utilizes an infrared wireless game controller

Game controller

A game controller is a device used with games or entertainment systems used to control a playable character or object, or otherwise provide input in a computer game. A controller is typically connected to a game console or computer by means of a wire, cord or nowadays, by means of wireless connection...

 made by Camerica

Camerica

Camerica was a company owned and operated by David J. Harding. It was a video game company that was notable for producing unlicensed Nintendo Entertainment System games and hardware. It was founded in 1988 and published games through 1992. It created a number of peripherals for the NES, including...

 for the Nintendo Entertainment System

Nintendo Entertainment System

The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America during 1985, in Europe during 1986 and Australia in 1987...

(NES) in the US. While it used a similar colour scheme as the Nintendo Control Deck and NES Advantage, it could also be used on the Sega Master System and some Atari systems when used with an adapter that came with the joystick.