21 hole design: This bubble machine has 21 holes, which can produce a large number of bubbles at the same time, adding a bubble effect to the scene. Transparent design: The shell of the device is made of transparent material, which allows users to clearly observe the formation process of the bubble, increasing the enjoyment and interest. Phantom light effect: The device is equipped with the phantom light function, which can project various patterns, such as Gatling shapes, etc., to make the bubble effect more colorful and add visual pleasure. Electric operation: Electric design, through electric drive, easy to operate, just press the button to start producing bubbles, easy to use. High quality bubble liquid: equipped with professional bubble liquid, clean, non-toxic, does not irritate the skin, to ensure good bubble effect.