Life Fitness X7 Elliptical Cross-Trainer with Advanced Console Advanced elliptical cross-trainer with Advanced Workouts Console provides synchronized upper- and lower-body movement Whisper eStride technology provides remarkably quiet, fluid electronic stride adjustments from 18 to 24 inches Contact heart rate hand sensors; also includes Polar wireless HRM chest strap FlexPedal Shock Absorption System lets the foot pedals flex, providing even less impact and more comfort than traditional ellipticals 400-pound maximum user weight; 10-year warranty on resistance system, lifetime on frame