3.75HP Electric Folding Treadmill with Auto Incline 12 Program APP Control silver first aid gel petroleum byproducts petroleum byproducts but those are for reference only and the grind size for every coffee bean can be fine tuned to both the individual bean attributes as well as the brew method Using hex lift the belt and insert the silicone oil about 20 grams to spray smoothly(adjust belt before lubrication) 75HP powerful motor provides high performance when running exercise 12 preset programs and 3 training modes meet different exercise needs 5 layer running belt with diamond texture ensures your running safety Auto adjustable incline with 5 degrees 10 degree shortcuts for multiple running intensity Super wide 52" x 17" running area with shock absorption Blue ray control panel tracks real time data and helps you make exercise plans Bluetooth speaker with convenient volume adjustment knob 4 mph and 7 mph hotkeys for quick speed mode choice Heart rate sensor accurately record your pulse during running The low noise operation does not disturb others and lets you enjoy a quiet workout Safety key prevents you from injury when in emergency Streamlined handlebar for more comfortable and stable grip Foldable mechanism and upright self standing allows easy storage and saves space Built in transportation wheels for easy movement Smart GYMAX APP control with extra functions for running with more fun Speed unit could be switched between mile and km in APP Please do not place the treadmill on carpet during usage to avoid motor overheat