The invention related to a device (1) for spraying charged droplets of a liquid towards a target along a spraying direction, comprising: a reservoir (10) for storing the liquid (L), a first electrode (100) being arranged at an outlet (11) of said reservoir (10), a second electrode (200) forming a counter electrode to the first electrode (100) for accelerating said droplets (D) along the spraying direction (S), and a housing (30) holding the reservoir (10) as well as said electrodes (100, 200).