【ULTIMATE SHOCK ABSORPTION】Optimal Cushioned Rebound Tailored for Low-Impact Shock Absorption. Reduce strain on knees, feet, and joints with advanced shock absorption technology, crafted to enhance comfort and support throughout rigorous workout. 【15 INCLINE LEVELS】Customize your workout intensity with 15 incline options (0-12%), easily adjustable for a challenging session. Elevate your workout routine effortlessly with the auto incline button. 【CONNECTED FITNESS】Sync this treadmill to your smart devices via Bluetooth using the free SunnyFit App, opening access to over 1000+ workouts and 10,000+ scenic global rowing routes. Personalize and track your progress in real-time as you run. 【16 PRE-SET WORKOUTS】Enjoy 16 challenging HIIT workouts for users of all fitness levels which allows you to burn more calories fast as you progress from beginner to advanced. Customize your fitness routine with 3 user-programmable workouts. 【10 MPH MAX SPEED】Discover the versatility of speeds, reaching up to 10 mph, ensuring a smooth and quiet experience with every stride. Whether you're a beginner or a seasoned runner, effortlessly select the perfect pace.