RioRand Glow Glass Waterproof Multi Color LED Light-Up Wine Cup - LED Cup Can Be Set to One of 6 Colors or to Fade-In/Fade-Out. Great for Parties, Bars and Clubs Powered by RioRand Advanced Technology Multi-Color Bulb for Steady Light or Color Show Lights Up Wine or Other Beverage ;Bright, Long-Lasting LED in Base Made of Food-Grade Hard Plastic Powered by Single Cell Battery Included