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When i connect my 2 jbl partybox 300's with cables i can only control volume to first speaker with my phone.
Sorry, there was a problem. Please try again later.Only one speaker needs to be paired and connected to a phone. Press and hold the Bluetooth button on both speakers at the same time for 5 seconds to build the connection. For wired option, you need to have a stereo RCA cable from the output of the first speaker going into the input R/L of the second one.
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