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multifunctional enlightenment percussion bus.colorful percussion, shuffling, building blocks matching.learning through fun to become smart, rich early education content for the baby fondly put down.creative gameplay, rich and interesting content.this is a multi-mode multi-function bus, just for children to learn better in play cognitive content is rich, teaching and fun.sound crisp bright and colorful, metal percussion.seventh tone, clear and pleasant, let the baby feel different timbre, enlighten the baby music fun.