Fanmusic TRN BT30 Pro True Wireless Bluetooth Earphone Module Swappable connectors (Headphones not Included) (MMCX)

Static hissing. Product go return.

I you look up any 2-pin 0.78 cable you can see that it has a rectangular protrusion (see second picture). But these connectors are flush meaning they won't fit all the way into the connector. As a result my IEMs fall out all the time. Even chewing something is enough movement to knock these out. I believe there are some IEM's with flush connectors that may work but do your research before buying these. Connection cuts out all the time but this may just be because the pin doesn't go in all the way. Also when I take calls on it a couple times people have complained about poor audio quality or me sounding too quiet. I think I'm probably going to return it.

They sound great, but they keep falling out of my ears with the TRUTHEAR x Crinacle ZERO:RED IEMs. Maybe I should have gone with the 2-pin version instead. I managed to fix it temporarily with turbo fusion glue, but that’s not really ideal.

I had high hopes for the BT30 Pro and its impressive features, but my experience was disappointing. While the build quality seemed solid, the primary issue I encountered was that only one side of the earbuds synced with Bluetooth. I’ve dealt with similar problems in the past, and while factory resetting usually fixes it, I just didn't have the time to figure out the button combinations needed for this model.On the positive side, the return process was straightforward, which was a relief. However, given my experience with the syncing issue, I ultimately couldn't recommend this product. I wish it had lived up to its promises of advanced wireless audio capabilities.