4 layers PVC wear-resistant running belt, 3 level adjustable incline system (manually). Equipped with heart rate sensor on the handrail and phone/pad holder on the LCD display; built-in speaker featuring ports for MP3 connection to enjoy your favorite playlist. LCD display can monitor time, speed, distance, calories and heart rate; 1.5HP powerful motor allows you to adjust the speed within the range of 0.8-12km/h. Easy folding system to save space and easy to clean, transportation wheels at the front end for easy mobility. The treadmill comes in 98% assembled, easy to assemble with detailed instructions.