“I bought 2 JBL PARTYBOX300. I connect both of them together and it sounds great and within few min or hour one speakers start to be delay. Can you please help me fix this problem.”

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• make sure you have the latest firmware to correct this issue

  Answered by respo3 5 years ago

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• We would like to get more information to help you out, please contact us so we can assist you: https://bit.ly/39hPHyX

  Answered by JBL Support 5 years ago

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