A drug delivery device comprising: - a plunger, wherein the plunger is slidable from a proximal position to a distal position, and - an audible indicator that comprises a resilient element (12.1), wherein the resilient element (12.1) comprises a distal free end, the resilient element (12.1) is in a first configuration when the plunger is in the proximal position, the resilient element (12.1) is deflected radially outwards to a second configuration during movement of the plunger from the proximal position towards the distal position, and wherein the resilient element (12.1) moves from the second configuration towards the first configuration when the plunger moves towards or reaches the distal position, thereby generating an audible signal indicating completion of medicament delivery, characterized in that: the drug delivery device is configured as an autoinjector device further comprising: - a case adapted to hold a medicament container, - a needle shroud telescopically coupled to the case, - a shroud spring biasing the needle shroud distally relative to the case, - a drive spring biasing the plunger from the proximal position towards the distal position for delivering a medicament from the medicament container, the plunger is disposed within the case, the plunger is slidable from the proximal position to the distal position within the case, the resilient element (12.1) is configured as a single metal component leaf spring comprising a proximal spring section (12.1.1) coupled to a distal spring section (12.1.2), and in that the proximal spring section (12.1.1) is fixed to the case. - a plunger, wherein the plunger is slidable from a proximal position to a distal position, and - an audible indicator that comprises a resilient element (12.1), wherein the resilient element (12.1) comprises a distal free end, the resilient element (12.1) is in a first configuration when the plunger is in the proximal position, the resilient element (12.1) is deflected radially outwards to a second configuration during movement of the plunger from the proximal position towards the distal position, and wherein the resilient element (12.1) moves from the second configuration towards the first configuration when the plunger moves towards or reaches the distal position, thereby generating an audible signal indicating completion of medicament delivery, characterized in that: the drug delivery device is configured as an autoinjector device further comprising: - a case adapted to hold a medicament container, - a needle shroud telescopically coupled to the case, - a shroud spring biasing the needle shroud distally relative to the case, - a drive spring biasing the plunger from the proximal position towards the distal position for delivering a medicament from the medicament container, the plunger is disposed within the case, the plunger is slidable from the proximal position to the distal position within the case, the resilient element (12.1) is configured as a single metal component leaf spring comprising a proximal spring section (12.1.1) coupled to a distal spring section (12.1.2), and in that the proximal spring section (12.1.1) is fixed to the case. the drug delivery device is configured as an autoinjector device further comprising: - a case adapted to hold a medicament container, - a needle shroud telescopically coupled to the case, - a shroud spring biasing the needle shroud distally relative to the case, - a drive spring biasing the plunger from the proximal position towards the distal position for delivering a medicament from the medicament container, the plunger is disposed within the case, - a case adapted to hold a medicament container, - a needle shroud telescopically coupled to the case, - a shroud spring biasing the needle shroud distally relative to the case, - a drive spring biasing the plunger from the proximal position towards the distal position for delivering a medicament from the medicament container, the plunger is disposed within the case, the plunger is slidable from the proximal position to the distal position within the case, the resilient element (12.1) is configured as a single metal component leaf spring comprising a proximal spring section (12.1.1) coupled to a distal spring section (12.1.2), and in that the proximal spring section (12.1.1) is fixed to the case.