Epic View 550 Treadmill Horse Power Rating : 3.25 CHP Odyssey II Drive-- Space Saver: Drop shock and self-locking latch-- Shock Absorption: Comfort Stride Cushioning--This cushioning runs the full length of the your running surface for maximum comfort while reducing impact on your joints. Heart Rate Monitor: EKG Grip Pulse --An easy and convenient way to measure your heart rate by just placing your hands on the crossbar to get an accurate heart rate readout. Model Number: 550