With the rapid development of the electronic age,  electronic products have gradually become a necessity in people's lives.  Everything has its own rooting. The source of electronic products is electricity, which is invisible, intangible, but essential. It is very often that some friends will encounter that the mobile phones are out of electricity when in the journey or outdoors. In case of emergency, charging is very important but quite difficult to make. In daily life, many users who charge the mobile phones with the chargers have this question, the phones sometimes charge quickly, sometimes very slow, why? It lays in the phone adaptor, that is, the link between the data cable and the home or the office of the adapter. So a good adaptor is the most important.