Sony's much-loved controller under goes a transformation for PlayStation 4 as the Dualshock 3 evolves into the Dualshock 4.
Utilizing a similar design as the popular Wireless Controller for PlayStation 3(DUALSHOCK 3), DUALSHOCK 4 features new innovations to deliver better gaming experiences. DUALSHOCK 4 incorporates a new highly sensitive six-axis sensor, as well as a touch pad located on the front of the controller, which offers gamers completely new ways to play and interact with games.
DUALSHOCK 4 features a light bar on the top with three colour LEDs that illuminate in various colours. The light bar illuminates to match the colour of characters in a game to offer a simpler, friendlier way to identify players, even when playing side by side. The light bar also changes patterns during gameplay to provide useful information to gamers, such as when a character is critically low on health or has taken major damage.
In addition, DUALSHOCK 4 will come with a built-in speaker and stereo headset jack, enabling PS4 users to enjoy high-fidelity sound effects of games from both the TV and also from the controller.  Combined with the Mono Headset that will be bundled with PS4, gamers will also be able to chat with friends playing online, while hearing sound effects from the controller in hand.
While integrating “SELECT” and “START” buttons on DUALSHOCK 3 Wireless controller into a new “OPTIONS button”, DUALSHOCK 4 is newly equipped with a “SHARE button” to further enhance PS4’s social capabilities.    The “SHARE button” allows gamers to easily broadcast their gameplay in real-time to friends through internet streaming services such as Ustream. Users can also share their triumphs and accomplishments by uploading video gameplay to Facebook with the “SHARE button”. Unlike streaming content via PC, users no longer have to convert