... OR L/C at site Product name:Event & Party Supplies Flashing plastic beer mug1. The color of the LED light : 2red/1yellow ... . Battery replaceable Attention: When you want to clean the cup,please take off the bottom to protect the internal electroice ... , Light up coaster, promotional coaster, promotion gift, Glow coaster, flashing coaster, bar promotion gift, party giftSpecificationsLED lights: 2 x red ...