Video showing led skull mug how to work ? / Product Knowledge / By Ningbo jiafuli Video showing led skull mug how to work ? it has two switch : on/off and water sensor ; it is multi color led light it with handle it has 2 size : 14oz and 22ozhttps://blinking-glass.com/wp-content/uploads/2020/11/20-led-skull-mug.mp4
