Wire control is commonly used on Apple mobile phones, that is, on the ios system. It can adjust the volume, pause playback, switch songs, and answer the phone. On Android phones, except for the ability to adjust the volume of the wire control, the rest of the playback can be paused. The functions of switching songs and answering the phone are all achievable. But please rest assured, this has nothing to do with the use. Because you can adjust the volume from the volume adjustment button on the side of your phone. Therefore, it is irrelevant to the general use.Wire length is about 1.4M