This product adopts advanced ultrasonic wave technology. With the ultrasonic wave's high frequency vibration and cleaning energy launched by ultrasonic wave energytransformable machine, it can clean dirt, cooking oil, thick liquid, lipstick, dirt of collars and cuffs thoroughly. It can also get rid of hortcomings of traditional ways of cleaning by vibration, rolling and friction. As a result, it achieves better cleaning effect than ordinary machines and manual cleaning. It's the best choice for homes, hotels and laundries.