Abstract: Described is a data processing unit for the telemetric adjustment of an implant and for telemetric communication between the implant and a data device. The data device comprises a control unit for processing the data entered, a memory unit for saving the data supplied, an entry unit for entry of data, a display unit for display of data, a telemetry unit for transfer of data to the implant or vice versa; and at least one reading device to read and/or write on a first and second data carrier, whereby, on the first data carrier, one can store the status data transferred to the implant, and, on the second data carrier, the administrative data pertaining to the implant.