Otamatone set of two, clear and yellow, with adjustable volume. - Model Name: Otamatone - Color: Clear - Color: Yellow - Volume Settings: Low, Mid, High - Volume Settings: Low, Mid, High Thank you for viewing. I am selling a set of two Otamatones because I no longer have the opportunity to use the ones I previously purchased. There are no stains, and the operation has been confirmed. They have only been used once or twice, so they are in like-new condition. Price negotiation is possible. If you are interested, please feel free to comment.