The FreeMotion s5.6 combines the high-calorie burn of incline training with the low-impact stride of an elliptical to give you the best in performance training. With a stride range up to 35 inches the s5.6 allows you to define each stride length. Short strides target your calves, medium strides focus on your quads and longer strides engage your hamstrings and glutes. With the interactive iFit® Workout Card Technology you get an 8-week solution to weight-loss, wellness or performance goals. The s5.6 is equipped with everything you need for an entertaining, efficient workout, including a built-in music port for your iPod® with high quality sound Interplay speakers. Rest assured that this heavy-duty, commercial product is backed by the best warranty in the business, the Lifetime Frame Warranty.