Endurance Center Drive elliptical trainers are the perfect blend of research, engineering, performance and technology. Patented technologies have been applied to provide a stable, space-efficient platform to perform rigorous low impact full body workouts. The combination of a natural stride, quality manufacturing and superior programming have created the latest evolution in cardio training. To ensure the best fi t for users of all sizes, the E400 features an adjustable stride. The E400 also features wireless heart rate control with advanced heart rate programs.