3.9ft x 1.41ft Two-Tier Running Belt: Running can be a strain on your knees, but with its innovative two-tier running board and shock-absorption system, this running machine won't cause any undue strain on your joints. Run for as long as you like in total comfort on the wide 3.9ft x 1.41ft running surface, which is able to support up to 300 lbs.. 0 to 15% Automatic Incline: Taking the incline up to 15% is a great way to work your quads, glutes, hamstrings, and calves, whether you run or do a brisk inclined walk. Just 10 minutes at maximum incline and your quads will be burning!. Bluetooth Connectivity & App Control: Conncet your phone or tablet to enjoy your favoriate media via Bluetooth and the speakers delivers vibrant stereo sound. Integrated FitShow app allows you to select custom routines and compete with others.. 3.25HP Ultra-Quiet Motor: The quiet-running electric motor produces 3.25hp, which is on a par with many professional (non-portable) gym treadmills. This allows you to run at speeds of up to 9 mph (14.5 km/h), which is plenty fast even for athletes.. Clever Foldable Design & Large LCD Screen: The sophisticated soft-drop system allows you to gently and elegantly unfold the treadmill with a simple press of your foot. The large central console gives you all the info you need while running, including speed, time, distance, calories burned, and heartrate..