RCA Lyra RD2215 512 MB Sport Digital Audio Player with FM Tuner 512MB built in memory, stores up to 16 hours of WMA music or 320 songs encoded @ 64 kbps. Sports Model includes; Splash proof easy to wear design for workouts, Stop watch, Pulse rate monitor and Calorie counter. Digital FM Tuner with FM Record. 3 Line Dot Matrix backlit display for navigating through this product's different features and for navigating through your music selections. 50 hour battery life with 1 "AA'