Selects and plays songs with beats per minute that match the steps per minute of your workout</br>BODiBEAT Station Software automatically analyzes your songs to get the best beats per minute</br>Has 4 operating modes for your workout such as the Free mode?? Fitness mode?? Training mode?? and Music mode</br>Can function as a simple music player</br>Has 512MB Memory for your music</br><br/>http://www.amazon.com/gp/product/B002G1YPLQ