DualShock is a line of gamepads with vibration feedback and analog controls developed by Sony for the PlayStation family of systems. The DualShock touchpad is a small surface that you can press and swipe on, similar to the equivalent on a laptop. This enables developers to map different parts of the touchpad to be different “buttons” that you can press.
On top of being wireless and presenting a truly ergonomic design, DualShocks now have a built-in vibration function and buttons on each stick—L3 for the left stick, and R3 for the right one. The most recent model, the DualShock 4, also has buttons to navigate the internet and watch movies, for example. » learn more