subranges can be more precisely defined it is provided for example that the haptic feedback module 4 is configured to generate amounts of movements of the touch sensitive surface 2 of between 5 and 38 u03bcm for an acceleration of the touch sensitive surface of between 4 5 g and 8 g it can also be provided that the haptic feedback module 4 is configured to generate amounts of between 54 and 110 u03bcm for an acceleration of the movement of the touch sensitive surface 2 of between 2 g and 4 5 g according to one example embodiment the haptic feedback module 4 is configured to generate amounts of movements of the touch sensitive surface 2 of between 5 and 38 u03bcm for an acceleration of the touch sensitive surface of between 4 5 g and 8 g and between 54 and 110 u03bcm for an acceleration of the movement of the touch sensitive surface 2 of between 2 g and 4 5 g thus according to the type of function selected by the user it is possible to generate a haptic feedback which is distinct but of which the amount and the acceleration of the movement remain within one of the two subranges fig2 thus shows schematically two groups of points g 1 g 2 a first.