Whenever there is an incoming call that you need to attend to, that should not be too much of an issue, since there is an audio cable that is accompanied by an inline remote control and microphone, letting you pick up that call, hands-free. Apart from that, this particular feature, too, can be used to end a call, play, pause or skip tracks.
The reason ColorWare is offering the Beats Solo² has been attributed to a number of customer requests, and hence it is nice to see this Apple-owned brand work alongside ColorWare to deliver a truly unique customization experience. Pricing starts from $179, although you can pick up a brand new pair of Beats Solo² Headphones and have them customized for $399.