The Xbox One controller is the main controller for the Xbox One. The controller maintains the overall layout found in the Xbox 360's controller, but with various tweaks to its design, such as a slightly revised shape, redesigned analog sticks, shoulder buttons, and triggers. The triggers have new vibrators within the triggers to allow for directional haptic feedback. Since the Xbox One's launch on November 22, 2013, there has been only one minor revision to the Xbox One controller that adds a 3.5mm stereo headset jack and features an improved mechanism in its bumpers.