The
DualShock (trademarked as
DUALSHOCK or
DUAL SHOCK) is a line of
vibration-feedback gamepads by
Sony for
PlayStation consoles and devices. The DualShock was introduced in Japan in late 1997, and launched in the North American market in May 1998. First introduced as a secondary
peripheral for the original PlayStation, a revised PlayStation version came with the controller and Sony subsequently phased out the digital controller that was originally included with the console, as well as the Sony
Dual Analog Controller. As of June 2008, over 28 million controllers have been sold in the DualShock line (excluding bundled controllers).