multicolor light led beer mug 1)CE&ROHS standard 2)LED in red,yellow,green,blue,white 3)Logo can be customized 4)Factory ser multicolor light led beer mug/led flashing cup/flashing beer mug1. Used for bars, parties, clubs and other occasions2. Press button on bottom of glass activates flashing in 3 styles: fast-flashing,slow-flashing and light-on3. Logo printing can be customized according to ...