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Hi there, tommy69. Thanks for posting and welcome to the Community. In most cases where wireless transmission of a signal is introduced, there is a potential for a delay in audio. Since this seems to be an accessory of the projector itself, it is possible there is a sync feature between the wireless component and the projector itself. The Community may have some experience with this particular model to help guide and advise.
Best of luck!
Building community is like building a garden. You build the frame, till the ground, plant the seeds, feed the plants & sometimes you gotta pull the weeds.