been trying the zs3 and trn BT cable, and very surprised by the fit and comfort. The zs3 seems like molded to my ears and much more comfortable than all my other BT Earbuds. Also the cable hugs the neck so nothing pulling on the buds. Why have I not tried this before? Now have to replace another set, so is there another "affordable" alternative to zs3 that has the same shape that fits the trn cables (2 pin or mmcx)?