I hesitated for a long time, in the end we should call it a key chain or watch? Finally, I decided it should be watches, LED watches for a cool and creative. Its appeal from the cube-shaped design, and black crystal texture, and through a simple wire connection shown in the black box is a major highlight, the highlight of the core sub-angle display, cool quite type it! Originally it had been good, and the designer took him to do in the key chain is completely ready for the influx of people!