?DURABILITY: It is firmly designed,the wires will not be pulled out easily,or break up when it was plugged in or during shipping! ?COMPATIBILITY: 100% fitting ,it will work perfectly with your device ,will not blow a circuit or make any physical noise when it was plugged in! ?INDUSTRY QUALITY: This ac adapter is CE &FCC certified and tested by manufacture ,sturdy with a thicker casing,will not be bent easily ,which has over heat and over voltage protection. Especially in the summer, it Will not hot to touch after using a long time.