Magically brighten up an event with these small glowing orbs. Great for cosplay props/armor. The 3-1/4" LED light sphere can be programmed and set to a range of blue, red, or green and give off a moon glow. There is one button on the bottom. Each click will change the color, the last setting cycles through all colors, and the last click turns it off. Each orb takes 2 CR2032 batteries. The battery compartment is sealed so the floating spheres can be used in water. There is also a place to tie a string if you wish to hang them to create the impression of floating orbs. Takes 2 x CR2032 batteries (included). Run time is 6 hours.