Ok.

This was for a present. Unfortunately the box is so damaged that I kept for myself.

It is a small diffuser made from shiny black plastic. 

It does look good at night and changes through severl different colours. The mist is also pretty effective.

However, It looks quite cheap and the £36.99 price tag is pretty extotionate! considering it is powered by USB.

A plugged option and a regular size made from quality materials would then warrant the hefty price.