Received my Senfer 4in1 yesterday. It comes in a earphone case, no box. Put it on my ears for a few hours now, with stock silver plated cable and default tips. The sound out of box is not that impressive. I still prefer my GR07c more than these. I enjoys GR07c's smooth and neutral sound. I'll give Senfer 4in1 more time for listening. Btw, the 4in1 build quality is quite good.