The Khronos Eliptical Crosstrainer looks and feels like a cross trainer that you'd find in your local gym. It's built to withstand light commercial use, is self generating, has electromagnetic resistance and is supplied with a chest strap for heart rate control - all in all is the best cross trainer that you'll find in this price range. The Khronos is a fantastic machine that is designed to withstand long, frequent training sessions. It has a great range of features and functions and is perfect as either a stand alone item of equipment or as part of a high quality home gym. Light Commercial Warranty Designed for use in hotels, spas and fitness suites as well as the home. Self Generating No need to plug into the mains ElectroMagnetic Resistance Responsive, non-mechanical resistance for an authentic "gym" feel Unique Footplate design The footplates are designed to be close together to give maximum comfort when in use Heart Rate Control The machine will automatically adapt the resistance,