MAXIMUM 15% MANUAL INCLINE15% incline, 100% more Calorie-burned efficiency. The treadmills for home equipped with a manual incline between 0-15% , you can start at 0%, then increase to 10% or 15% incline with the including attachments. Calorie-burning efficiency is increased by more than 100% - take your exercise to the next level. CLEAR LED DISPLAY SCREENEquipped with the tablet/phone holder, cup holder, heart rate monitoring system, and 12 preset modes, the incline treadmill fully support your workout. Besides, the large clear LED display on each treadmill allows you can easily track the distance, calories burned, time and speed in real time and easily adjust settings with buttons based on your training goals.