Kettler Favorit Rowing Machine Hydraulic cylinder resistance controlled by leverage style tension adjustments KETTLER designed frame with ball bearings in the padded seat&rsquo;s rollers provide a smooth glide along the main aluminum track while the pivoting footplates provide optimal foot positioning KETTLER ear lobe clip measures heart rate electronically LCD Computer displays time, oar strokes, current cadence, cumulative distance over all training sessions, heart rate and kilojoules, a precise measurement of energy consumption (4.2 kJ = 1 kcal) Settings include time, distance goals and a visual and acoustical cadence signal