LED Mini Colorful Flashing Clear Crystal Mug Wine Glass Beer Drink Cup Bar Party Brand new and high quality. LED flash beer mug cup. Perfect decoration for your rooms, parties, clubs, bars, cocktail, wedding, etc. Press button, the light will flash colorfully. For parties, bar, club, coffee house, karaoky. Bottom with red, blue, and green LED light source. The battery is a conventional battery runs out can be replaced, the bottom of the switch can be controlled. Material: Clear acrylic.