hearing aids

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Across
  1. 3. They connect the electronic parts.
  2. 4. It is used for individual adjustment. (2 words)
  3. 5. It converts electrical signals into acoustic signals.
  4. 7. A person who doesn't hear well is ...
  5. 9. A hearing aid with a computer inside is ...
  6. 10. It is used to turn on the hearing aid.
  7. 11. It modifies the sounds.
  8. 12. You clean it in the ultrasonic bath.
Down
  1. 1. It converts sounds into electrical signals.
  2. 2. It can have different colours. (2 words)
  3. 6. You find the battery there.
  4. 8. It increases the intensity of the signals.