DualShock

Summary

The DualShock is a line of gamepads developed by Sony Interactive Entertainment for the PlayStation family of video game consoles. It is named for vibration-feedback and analog controls. Introduced in November 1997, it was initially marketed as a secondary peripheral for the first PlayStation console. The console's bundle was updated to include DualShock, and phase out the original PlayStation controller and the Dual Analog Controller. The DualShock is the best-selling gamepad of all time by units sold, excluding bundled controllers.