The present disclosure relates to an apparatus, in particular a shower head (100), having a water-driven or water-powered vibration function for massage purposes and/or for sexual stimulation. The shower head (100) preferably includes a hollow longitudinal main body (1), a water inlet (2) arranged on one side of the hollow longitudinal main body (1), one or more water outlets la arranged on another side of the hollow longitudinal main body (1), a vibration member (8) arranged inside the hollow longitudinal main body (1) between the water inlet (2) and the one or more water outlets la, and a switching mechanism (11) configured to switch between a first state in which the vibration member (8) is movably released inside at least a portion of the hollow longitudinal main body (1) and a second state in which a position of the vibration member (8) is fixed.