The audio titled "Highlighter" sets off with the distinct, crisp sound of a cap being removed from a marker. This is immediately followed by a soft, rhythmic noise, almost a whisper, as the highlighter glides across a piece of paper, leaving a trail of vivid color. The sound is both soothing and familiar, reminiscent of a writer deeply engrossed in their work. The audio subtly captures the essence of a dedicated student or a focused professional using the highlighter to underline important text, a noise that seamlessly blends with the silence of an intense work environment. Every stroke of the marker, every sound it makes, resonates with the concentration and determination of a person striving to absorb and retain information. The audio ends with the satisfying click of the marker cap being replaced, signifying the completion of a task.