The Cybex 525AT Arc Trainer is ideal for workout spaces where space is at a premium. It delivers the legendary calorie burn performance and flexibility of all Arc Trainers but in a streamlined package that delivers outstanding value.The Arc Trainer burns more calories than any other cross trainer or elliptical cross trainer tested. The science behind the Arc Trainers big calorie burn is the Arc motion. It engages the right muscles; quads and glutes that demand lots of energy from the body when they are called upon to work. That means big calorie burn. And because the Arc is demanding of the muscles not the joints it can be used longer without putting a strain on the knees hip or back.Train for strength power endurance cardio and weight loss the machine offers broad incline and resistance ranges which means it is really 3 machines in one. At the lower incline levels the glide is a cross country skier. In the mid-range levels the motion is a stride (like an elliptical except with proper positioning). At the high levels the climb of a stepper or climber. Glide Stride and Climb. And lots of programs make the Arc Trainer fun to use.SpecificationsIncline Levels: 21Stride Length: 24″ (61 cm)Resistance Range: up to 600 wattsDrive Type: Two-stage driveBrake: Brushless Eddy current brakeDimensions (L x W x H): 76″ x 30″ x 62.5″Machine Weight: 364 lbsMaximum User Weight: 400 lbsPower: AC Powered: 115V 208-220V 230VDisplay: Graphic display of profile via 8 x 5 LED. Numeric display of time calories strides per minute and heart rate including multi-color indication of heart rate range. Lower display shows time. incline and resistance levelWorkouts: Quick Start Manual three Weight Loss three Cardio two Strength and Heart Rate Control. Programs have 10 levels and control both incline and resistanceCompliance: ETL listed to UL 1647 FCC Class B ASTM EN 957 CE Low Voltage Directive EMC and ROHSConvenience Features: Split level display with magazine rack. Water bottle holder dual utility tray and dual speed fanHeart Rate Monitoring: Contact and wireless. HR light indicator is multi colored with different color light for specific target heart rate zones