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 fit for users of all sizes, the E400 features an adjustable stride. The E400 also features wireless heart rate control with advanced heart rate programs. Features: Patented Center Drive design; Rare blend of space efficiency and stability; Low center of gravity combined with a balanced frame prevents rocking; Dual-action upper and lower body with premium handgrips; Easy step-up height; Close pedal spacing combined with oversized pedals fits any size user and eliminates hip fatigue; Includes handles for easy transport; Adjustable stride from 17 to 23-inches ensures the best fit for any size user; Wireless HRC with chest strap; Contact heart rate; Programmable, with five HRC programs, seven programs, and two user programs; 300 pound user capacity; In Home Warranty: Lifetime on frame, five years on parts, one year labor.