“How can I fix synchro sound problem after few minutes when I am in stereo mode I have a short lag between my two party box 300”

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

  Answered by respo3 4 years ago

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• We'd like to work with you directly and try some steps with your JBL PartyBox 300. Please reach out to our Customer Support. We're here to help.

  Answered by JBL Support 5 years ago

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