The invention refers to a mixing and/or reconstitution system which reduces the possibility of user error and provides an easy and automatic operation comprising -a device(300, 400) containing a first material within a first chamber (305, 405), further comprising a housing (301, 401) and a plunger (307, 407), -a vial (308, 408) containing a second material within a second chamber (309, 409), wherein at least one of the first material and the second material is a fluid, -a base station (350, 450) comprising at least one drive unit (370, 470), a first slide (374) and a driver, and -a needle (302, 402), wherein the device (300, 400) and the vial (308, 408) are attachable to the base station in an initial position in which the device (300, 400) and the vial (308, 408) have a pre-defined distance to each other, wherein the needle (302, 402) is attached to the device (300, 400) and fluidly connected with the first chamber (305, 405) of the device (300, 400), wherein in the initial position the at least one drive unit (370, 470) is connected to the first slide (374) that moves the vial (308, 408) and/or the housing (301, 401) of the device (300, 400) relative to each other in an axial direction of the device (300, 400) along a pre-defined distance into an activated position, in which the needle (302, 402) is fluidly connected with the second chamber (309, 409) and wherein in the activated position the at least one drive unit (370, 470) is connected to the driver that moves the plunger (307, 407) in the axial direction of the device (300, 400) along a pre- defined distance such that during fluid connection of the needle (302, 402) with the second chamber (309, 409) the first material is expelled from the first chamber (305, 405) of the device into the second chamber (309, 409) of the vial (308, 408) or the second material is expelled from the second chamber (309, 409) of the vial (308, 408) into the first chamber (305, 405) of the device (300, 400). The invention further re
