This is the Spa Radio 2 of 2 products created to provide your Spa with music, however, this product is invisible, but you must stand on the yellow dot to hear the music. The product is invisible intentionally and will allow you to place the yellow dot in front or behind the Spa Radio 1 of 2 product that sits on a desk, shelf, table or any where you like. So, to add Spa music to your establishment, simply use both products together: Spa Radio 1 of 2 and Spa Radio 2 of 2.