OUR UNIQUE LIGHT UP DRINK COASTER FEATURES BRIGHT, RED, GREEN AND BLUE LED'S BUILT IN AND A MIRROR ACCENT THAT CREATES AN INCREDIBLE LIGHT SHOW! THIS FLASHY DRINK COASTER IS A GREAT PROMOTIONAL PRODUCT FOR BARS. SERVE UP SIGNATURE DRINKS ON THIS INFINITY FUSION LED COASTER AND IT'S SURE TO TURN HEADS. CLICK THE BUTTON FOR 6 DIFFERENT LIGHT FUNCTIONS. 2 - CR2032 BATTERIES ARE INCLUDED, INSTALLED AND CAN BE REPLACED. COMPLIES WITH CE, CPSIA, C-TPAT.