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As in the object, I've to open my B2's, without damage them, to a proof clean. Some help?
TIA

If you open the B2, the drivers will also come out, they will snap from the wires leaving your unit not working and the warranty invalidated.

I also don't think you need to open it, the nozzle hole is really small and there is a filter inside, this will stop earwax and dirt from getting into the main housing. You could just use a thin pin to pick out any dirt caught inside the nozzle.

Again i really do not recommend opening your earphones.