This is the 8 1/2' long rainbow piano mat that allows children to compose their own music as they dance, run, and jump on colorful keys.

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This is the 8 1/2' long rainbow piano mat that allows children to compose their own music as they dance, run, and jump on colorful keys. Large enough for duets, musicians can record and instantly listen to their compositions through an integrated speaker or tap along with prerecorded songs. It replicates nine different instruments (piano, saxophone, violin, accordion, trumpet, harp, vibraphone, guitar, and music box) and connects to a smartphone or tablet to enable musicians to play along to their favorite songs. Requires four AA batteries. Ages 3 and up. 102" L x 29" D. (5 3/4 lbs.)