Drug delivery device comprising: - a case adapted to enclose a medicament container, - a plunger disposed within the case and slidable from a proximal position into a distal position for delivering a medicament from the medicament container, - at least one feedback mechanism activated by movement of the plunger, the feedback mechanism comprising a collar, a control spring biasing the collar in a distal direction, and a shroud characterized in that the shroud is a needle shroud adapted to operatively couple to the collar in a first state, wherein in said first state, the needle shroud is prevented from decoupling the collar by the plunger being in the proximal position, wherein the plunger, during movement from the proximal position towards the distal position, is adapted to allow decoupling of the needle shroud from the collar, to allow a movement of the collar relative to the needle shroud until the collar couples to the needle shroud in a second state, wherein the collar comprises one or more resilient first snap-fit joints (14.3) adapted to axially couple to the needle shroud in a ramp engagement in the first state, the first snap-fit joints (14.3) adapted to inwardly deflect due to this ramp engagement, wherein the plunger in the proximal position is adapted to inwardly support the first snap-fit joints (14.3), preventing their inward deflection and wherein the plunger in the distal position is axially removed from the snap-fit joints (14.3), allowing their inward deflection, wherein the collar comprises one or more collar ribs (14.6) adapted to axially couple to the needle shroud in the second state, and wherein the needle shroud comprises one or more openings (7.2) adapted to allow the deflected first snap-fit joints (14.3) to engage within the openings (7.2). - a case adapted to enclose a medicament container, - a plunger disposed within the case and slidable from a proximal position into a distal position for delivering a medicament from the medicament container, - at least one feedback mechanism activated by movement of the plunger, the feedback mechanism comprising a collar, a control spring biasing the collar in a distal direction, and a shroud characterized in that the shroud is a needle shroud adapted to operatively couple to the collar in a first state, wherein in said first state, the needle shroud is prevented from decoupling the collar by the plunger being in the proximal position, wherein the plunger, during movement from the proximal position towards the distal position, is adapted to allow decoupling of the needle shroud from the collar, to allow a movement of the collar relative to the needle shroud until the collar couples to the needle shroud in a second state, wherein the collar comprises one or more resilient first snap-fit joints (14.3) adapted to axially couple to the needle shroud in a ramp engagement in the first state, the first snap-fit joints (14.3) adapted to inwardly deflect due to this ramp engagement, wherein the plunger in the proximal position is adapted to inwardly support the first snap-fit joints (14.3), preventing their inward deflection and wherein the plunger in the distal position is axially removed from the snap-fit joints (14.3), allowing their inward deflection, wherein the collar comprises one or more collar ribs (14.6) adapted to axially couple to the needle shroud in the second state, and wherein the needle shroud comprises one or more openings (7.2) adapted to allow the deflected first snap-fit joints (14.3) to engage within the openings (7.2). wherein the collar comprises one or more resilient first snap-fit joints (14.3) adapted to axially couple to the needle shroud in a ramp engagement in the first state, the first snap-fit joints (14.3) adapted to inwardly deflect due to this ramp engagement, wherein the plunger in the proximal position is adapted to inwardly support the first snap-fit joints (14.3), preventing their inward deflection and wherein the plunger in the distal position is axially removed from the snap-fit joints (14.3), allowing their inward deflection, wherein the collar comprises one or more collar ribs (14.6) adapted to axially couple to the needle shroud in the second state, and wherein the needle shroud comprises one or more openings (7.2) adapted to allow the deflected first snap-fit joints (14.3) to engage within the openings (7.2).