The present invention refers to an injection device comprising a housing (5) with a receptacle (2) for the product, a dosing mechanism for setting a product dosage to be administered and for displaying the set product dosage and a dispensing mechanism for dispensing the product. The dispensing mechanism may comprise a piston rod (8), which is moveable relative to the housing (5) in a dispensing direction in order to eject the set product dosage in a dispensing stroke corresponding to the set product dosage, at least one sleeve (7； 40), which is rotatable relative to the housing (5) in order to eject the set product dosage, and a button (14), which is moveable relative to the housing (5) and relative to the at least one sleeve (7； 40) in the dispensing direction from a dosing position into a dispensing position in order to eject the set product dosage. The device further comprises a first detector (21) for detecting the position of the button (14) relative to the housing (5) or the at least one sleeve (7； 40), a second detector (22) for detecting rotational movement of the at least one sleeve (7； 40) or a component part (30) coupled to the at least one sleeve (7； 40) and a feedback generator mechanism (20) connected to the first and second detector (21, 22) for generating a feedback responsive to signals received from the first and second detector (21, 22).
