This is why it’s important to do research before purchase. Many Midland radios are sold as bundles, including everything needed to get up and running. That said, I don’t believe Midland sells a “mobile repeater” but they have many mobile radios. While capable of being used “off label” for GMRS, the Icom isn’t a GMRS radio and isn’t really targeted for the casual GMRS user. Icom radios are intended for the HAM and those folks generally know all the needed pieces of the puzzle.