Update: The issue was resolved after I restored the default configuration. I really enjoyed this product!
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I bought 2 units. Upon observation, there are milisecond delay when I directly plug my wireless platinum mic, both ports. As workaround, I directly plug the mic to the partybox speaker I am using so currently I am not able to use the SCORE feature. I am using default configuration. I hope the team look into this and resolve in future firmware update or at least provide resolution. This device is small and great product on my opinion.