For sale by auction with no reserve, here is an unusual lamp for theatrical or party use or just for fun at home. The lights rotate according to the level of ambiant sound. There is a control knob at the back which adjusts the level of sensitivity. For best effect, a loud sound source close to the unit produces a great light show. Unfortunately the blue lens has been scratched but this does not affect  the overall performance. This is collection only from near Blandford Forum in Dorset, hence the starting bid is just £15. Do email me if you have a question.