With the Lyra RD2212 (256MB), RCA attempts to create the ultimate gymworthy music machine. The RD2212 manages to offer a compact, fitness-friendly design without sacrificing screen real estate: You get an ample three-line, backlit amber-colored display with legible text. And, thanks to its 47-hour AA battery life, a single cell can get you through weeks of workouts. Plus, RCA has thrown in some handy extras, including an FM tuner, a calorie counter, and a pulse meter.

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