LED flashing cups/mug :1, 3 LED lights, various colors available 2, High quality PS material or Acrylic material to made of 3, Capacities: 400ml 4, With water proof function 5, Operated by 3 x AG13 cell button batteries (included) 6, Easy operation: 1st press for fast-blink; 2nd press for slow-blinking; 3rd press for steady-light & 4th press for turn off. 7, Unit Size: 178 (H) x 84 (D) mm