The Makita AC Power Supply allows the Makita Job Site Radio (model XRM10 sold separately) to provide all-day job site sound when working near a power source. The power supply also holds a dual purpose as it allows the radio to become a charger for both LXT® and CXT® 12V and LXT® and CXT® 18V batteries when used with model XRM10 (sold separately). It installs quickly and easily and is made of high-quality materials for long-lasting performance. For use on the job site as well as for DIY projects.