This is a Wanwan Melody Mat. Lay it on the floor, and it makes sounds when stepped on. You can also record and play back sounds. It produces sounds like a piano, trumpet, and the barks of dogs and meows of cats. How about it for your child's full-body exercise♪ They'll move their bodies a lot to the fun music. Retail price: 4378 yen (tax included) Operation confirmed. Will be delivered with batteries included. This is a used item that a child has played with, so there may be stains and scratches. Please purchase only if you understand this. It will be folded up small for shipping. #WanwanMelodyMat #Wanwan #MelodyMat #MelodyMat #Piano #EducationalToy #Exercise #Toy #InaiInaiBaa #InaiInaiBaa #U-tan