The best St09 disco party mini laser light projector will uplift the beauty and grace of any party. Whatever the theme, this product adds the special effects to set the mood, from string lights and bubble machines for your holiday celebration to disco beacon lights, pocket strobes, and mirror balls for your 80s dance floor. These miniature party lights are battery operated and can be placed anywhere you want. They are designed to take the weather and can be used indoors or outdoor string lights come with end-to-end plugs so that you can hook multiple strings together .These lights are always needed to get the party in full swing.