The Reebok V 6.80 treadmil lets you to set the time, minimum speed, and maximum speed of your workout. The iPod dock and Intermix Acoustics 3.0 EQ Sound System enables you to listen to your favorite tunes through two 3" speakers. There is also an iFit station, which coaches you through Personal Trainer designed workouts for eight weeks. The iFIT cards varies your speed and incline as the voice of a personal trainer coaches you through every workout. Sixteen workouts are built in. The Reebok V 6.80 features a powerful 2.0 chp motor with a 25 year warranty and a 300 lb weight capacity.