Peripheral having at least one transparent key comprising a flexible membrane

A peripheral (1) including at least one key (2) that is transparent, the at least one key actuable under the effect of pressure and engaged in an opening (11) arranged on a first face (10a) of a case (10), the at least one key (2) cooperating with the first face (10a) of the case (10), the peripheral (1) including a control and detection system (13) of a pressure exerted on the at least one key (2), and at least one screen (4) allowing symbols (3) to be displayed through the at least one key (2) via respectively a display path (5), characterized in that the control and detection system (13) includes a flexible membrane (14) ensuring an actuating force and a pressure feedback effect, said flexible membrane (14) including at least one orifice (17), the at least one orifice delimiting a display path (5) for the at least one key (2), and the at least one orifice (17) being delimited by a border (17a) cooperating with the at least one key (2).