This is a quantum pendant
My mechanic has one and i tried it on before, everything that you can find from youtube (quantum pendant) it works. The only thing is mine doesn't work. Probably that's the different between paying RM650 and paying RM100. Heee hee!
The seller says sometimes it takes a month for my body to adapt to the rock, so I'm just gonna sit down and wait patiently before I become a superman! ha ha...
Anyway heres a video of how this thing works or should work..