Smooth, quiet magnetic resistance for quiet operation Hand dial for easy resistance changes 8 settings Electronics monitors speed, distance, time, estimated calories burned and scan functions. The 'P' model comes with hand contact pulse, which also is read on the monitor. 2AA batteries included Frame is 2' round stabilizers and 3' rectangular tubing Frame adjusts to different lengths for users of differing heights Pedals include foot straps Very limited assembly Maximum tested weight limit is 250 pounds. Product is not recommended or guaranteed for use by users that surpass this limit.