Product takes three AAA batteries it will automatically light for 2-3 minutes, then off

Product takes three AAA batteries, the use of sensor switch, it will automatically light for 2-3 minutes, then off, then as long as you hit the cup with your fingers lightly on the body, it begins to work, then after a 2-3 minutes off automatically .

A Romantic and Colorful Light Bone China Cup Birthday and Christmas Gifts