The fun drinking glass comes with an on/ off switch, which uses for colorful LED lamp so you can see a variety of lights flashing alternately when turning on the switch; 3 Button cells are installed at the bottom of the cup, energy-saving, high-efficient with long service life.Transparent color makes the cups clearly show the flashing colors when switching on the button.
These flashing light cups will bring you surprising visual appeal when you shut off the light in the room or party; Whatever the occasion, these tumblers Light up your birthday party, wedding, nightclub, holiday parties, weddings, sporting events, festivals, night events, bars, etc., Bring them to music festivals, concerts, or sporting events. You’ll definitely stand out!