This is a HOMSSAGE cushion. It can be used by connecting it with a cord and pressing the button. It also has a function that allows you to massage while warming up by switching the button (please refer to the 4th photo). Please check the images for the product condition. Please note that there may be stains and minor scratches that are not visible in the photos. As this is a long-term storage item by an amateur, please refrain from purchasing if you are looking for perfection. To prevent product substitution and trouble, returns and cancellations after the product arrives are not possible. Please understand this beforehand. Please purchase only if you agree to these terms.