Patent ID: 7590436

Claim:
A mobile telephone comprising: a first and a second housing part, wherein each housing part can be displaced by sliding with respect to one another in such a way that respective sections of each housing part are exposed as a result of the displacement, and wherein an exposed section of the second housing part comprises an internal acoustic area defined by a wall located within the second housing part that separates the acoustic area from the remainder of the second housing part; a keypad located in the first housing part; and a bending wave loudspeaker comprising a plate-like element in the exposed section on a rear of the second housing part for emitting audible signals and an operating element for exciting bending waves in the plate-like element, wherein the bending wave loudspeaker and operating element are located on an outside surface of the acoustic area that faces away from a user and the bending wave loudspeaker travels on a path that is parallel to the keypad when each housing part is displaced by sliding.