The invention relates to a drug delivery device (1) comprising: a case (2) adapted to hold a medicament container (3), a plunger (10) disposed within the case (2) and slidable from a proximal position into a distal position for delivering a medicament (M) from the medicament container (3), an audible indicator (12) that is arranged within a case pocket (2.2.2) lateral to the plunger and that is in operative connection with the plunger (10), the audible indicator (12) comprises at least one indicator spring (12.1) and at least one locking element (12.2), wherein the indicator spring (12.1) is biased by the locking element (12.2), and the indicator spring (12.1) relaxes due to a release of the locking element (12.2) by a movement of the plunger (10).本發明涉及一種藥物輸送裝置(1)，其包括：一殼體(2)，其適於容納一藥劑容器(3)，一柱塞(10)，其設置在所述殼體(2)內並且能夠從一近側位置滑動到一遠側位置中以便從所述藥劑容器(3)輸送一藥劑(M)，一聲響指示器(12)，其配置在橫向於所述柱塞的一殼體凹口(2.2.2)內並且與所述柱塞(10)操作連接，所述聲響指示器(12)包括至少一個指示器彈簧(12.1)和至少一個鎖定元件(12.2)，其中所述鎖定元件(12.2)使所述指示器彈簧(12.1)偏壓，並且所述指示器彈簧(12.1)由於透過所述柱塞(10)的移動的所述鎖定元件(12.2)的釋放而鬆弛。
