Device with a suspension system

The invention relates to a device with a suspension system, which suspension system (4) comprises a first part (10) subjected to a mass (12), a second part (14), and an air spring (18) arranged between this first part (10) and this second part (14), wherein at least one additional volume device (30) for air is provided, the volume of which can be controllably switched in, as well as a control device (32) for switching in the volume of the additional volume device (30), whereby via the control device (30) a pressure accumulator (40) and the additional volume device (30) are in fluid contact with the air spring (18) in such a manner that a force-displacement characteristic curve of the air spring (18) can be predetermined as a function of a compression and/or extension travel and/or velocity and/or acceleration of the first part (10) and is itself modifiable during the compression and/or extension of the first part (10) by switching in the additional volume (30) and/or the pressure accumulator (40) by the control device (32).