A portable medium dispenser for discharging liquid, pasty or powdery media, having a housing with a discharge opening, a medium reservoir for accommodating the medium before discharge, and an actuating handle, by which a feeding process can be effected during which medium is fed from the medium reservoir to the discharge opening.The dispenser includes a detecting device for detecting a shaking movement, the detecting device including an optical or acoustic output device and being designed to transfer the output device from a first state into a second state in response to a manual shaking of the dispenser.