The Ryobi ONE+ Radio is a perfect addition to you ONE+ collection. The ONE+ Radio can be used anywhere: jobsite, tailgating, workshop, or boating. Digital tuning with auto seek allows quick station changes. The Auxiliary input accepts MP3 players, CD players or any other audio device with 3.5mm jack. Audio player holder allows the device to mount the radio via the players belt clip. The 4.5 in speaker allows for quality sound. ONE+ Radio also allows for convenient switching from FM to AM and auxiliary input. The low battery indicator advises when the 18 volt battery used in all your ONE+ tools needs to be recharged.