DESC: Workout with Sony's WM-FX241 Walkman® Digital Tuning AM/FM Stereo Cassette Player for non-stop music on the move. Our Anti-Rolling Mechanism maintains stable tape speed to maximize sound quality while the unit is in motion. So no matter how hard you run, the WM-FX241 won't miss a beat. Also enjoy features like our Digital Synthesized AM/FM Stereo Tuner, 40 Station Preset Tuning, and up to 25 Hours Extended Battery Life. Put the groove in your workout moves with the WM-FX241