This is a HOMSSAGE cushion. It can be used by connecting it with a code and pressing the button. It also has a function to warm and loosen your body 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. Please refrain from purchasing if you are looking for a perfect item, as this is a long-term storage item by an amateur. Returns and cancellations after the product arrives are not accepted to prevent product switching and trouble. Thank you for your understanding. Please purchase only if you agree to the above.