High-Efficiency 9-Level Auto Incline System: Upgraded 12% auto-incline with 9 levels, this walking pad treadmill boosts calorie-burning efficiency vs. flat walking. From gentle walks to Zone 2 running up to 5.0 MPH, the sturdy construction ensures a safe, smooth experience for everyone.,Enhanced Bluetooth & Interactive FitYo App: Bluetooth (select batches) links the walking pad treadmill to.