In this audio, you'll hear the distinctive signal sound of a Citroën DS4, version 4. This sound effect, or SFX, is a clear and crisp alert that's uniquely characteristic of this model. The sound begins with a low, soft hum, quickly escalating into a sharp, resonant beep, echoing the advanced technology and sleek design of the Citroën DS4. This signal sound serves as an important audio cue for the driver, providing necessary information and warnings about the vehicle's operating status. The sound is designed to be distinct and easily recognisable, ensuring immediate attention when required. It's a perfect blend of functional alert and auditory aesthetics, reflecting the Citroën DS4's commitment to safety, efficiency, and style.