About the Commercial Le Treadmill:The NordicTrack Commercial Le Treadmill is perfect for those who value a powerful motor, durable build, and cushioning specific for running but prefer to use their own device rather than an integrated screen. A speed range of 0-12 Mph allows you to run up to a 5-minute-mile pace. The adjustable 12% incline to -3% decline allows you to train with precision, mimicking the exact gradients you ll face in your race. This specificity not only builds powerful leg strength and endurance by targeting different muscle groups but also enhances cardiovascular fitness and increases calorie burn through more efficient heart rate elevation. The RunFlex cushioning is engineered specifically for runners it offers the perfect balance, ensuring you get maximum energy return with every stride, without sacrificing the support you need. During your workout, the AutoBreeze fan keeps you cool, and a Usb-c port lets you charge your phone while you move.