Review

  • Made for on-the-go music pleasure, the SRS-XB3 and SRS-XB2 boast a huge battery life (up to 24 hours on the XB3, up to12 hours on the XB2) - letting you listen longer with no need to hunt for a plug," says Sony.
  • "If we had only scanned them at one age or stage, we wouldn't know whether these effects simply were present from birth or reflected an actual change in brain development," said study co-investigator Dr.


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