This laser star projector is one of the amazing new produce every year people excited about it, it is widely used as the decoration for the home, cafe, bar and so on. It is very small and easy to carry, no set up needed, you can put it anywhere anytime you want, especially for party, it makes the party fascinating. You can even use it to decorate the sky at the night. Simply press the laser beam button to drive laser pointer. Powered by two AAA batteries (Batteries included). 20mW blue laser, is ready to work for your purpose. Light source: 532nm/200mW blue laser module.