The device is a single-bit smell output device which a distant lover activates to indicate they are thinking of their partner.
Source: Kaye, J. ‘Jofish’ and Goulding, L. 2004. Intimate Objects: A site for affective evaluation. In Proceedings of the Conference on Designing Interactive Systems Processes, Practices, Methods, and Techniques (DIS’04). ACM Press, 341–344.