To activate your Margarita Drinking Glass, press the button on the base. With each push of the button, change LEDs to 1 of 7 individual colors (steady light/no flash), then lastly a slow color change function. Height: 6.9 in.- Width: 4.6 in. Volume: 10 oz. filled to brim LED Colors: Blue, Green and Red Batteries: Includes 2 replaceable CR2032 batteries. Weight: 0.65 LB