Data throughput, design and functionality are clearly given. Because I constantly need a USB flash drive in the most unlikely situations, but not had at hand, I have found me one for the bunch of keys in a large organgenem electronics department store, which is supposedly "cool". They were, however, so monstrous, that I have almost broken my entire trousers in their basic components when to pull my keys out of my pocket test. Then I came across the PRTEC pendant. Have him even bought the same ... and a new pair of pants.
Small, handy, with a small seal on the thread for water resistance (which I have not tried). The stick makes a very robust impression and I've had him frequently in use. Although has made me so far no problems, but you should note that the stick itself is of course quite short. Therefore, when space on USB slot could cause trouble at the end of the round cylinder.