ProGear HCXL 4000 Ultimate High Capacity Extra Wide Walking and Jogging Electric Treadmill with Heart Pulse System, 400 lbs. Tested up to 400lbs of user weight Extra Wide 20" treadmill belt like you would find in Health Clubs 1.5 Horse Power High Torque Motor utilizes "Quiet Drive" which reduces any noise when walking Measure your target heart rate Jog at 4mph for a vigorous workout