Japan's Great Inventions

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Across
  1. 3. These are small lights that are blue.
  2. 6. These are smart, helpful, and speak.
  3. 7. Used to play music on the go.
Down
  1. 1. A small but smart invention.
  2. 2. Trains that go very fast.
  3. 4. A screen that you can watch anything.
  4. 5. Used as codes for buying and more.