3.0 CHP Mach Z Commercial Plus Motor, 20" x 55" Tread Belt, ProShox Cushioning, Compatible Music Port for iPod. 6" Backlit Display, 12 MPH Quick Speed Control, 12% Quick Incline Control, 24 Workout Apps, Space Saver Design, 325 Lb. Weight Capacity. 1.9" Precision Machined and Balanced Non-Flex Rear Roller, CoolAire Workout Fan, Grip Pulse EKG Heart Rate Monitor. IFit Compatible-Requires iFit wireless module; sold separately; Buy an iFit wireless module and receive a free one-year iFit subscription. The ProForm? product is protected with a Lifetime Frame & Motor Warranty, 2-Year Parts Warranty and 1-Year Labor Warranty.