New from Road King is the RK5640 CB radio. It comes prepackaged with their popular RK56 noise canceling microphone which normally sell for around $60 by themselves. The radio is compact enough to fit into most cubby holes in semi trucks. Built in SWR meter to help tune in your vehicles antenna system, and an SWR alert light to tell you if there's a problem with the antenna system. Comes with a front mounted USB jack to help charge devices such as a cell phone or bluetooth headset.