The Tectrix Climbmax 2 stair climber is the newer version of the the Tectrix 150 model. It comes with upgraded features that make it a smoother machine which gives you the same great work out as the 150. It has all the same functions as the 150 model including 9 built in programs plus a instant step on manual program. Its gives you a great work out, you will never stop sweating and can burn about 800 calories in 1 hour at a good pace. One other good thing about all Tectrix steppers is that the position where you are stepping and the hand rails are far enough apart that you can't cheat and hold yourself up. These machines are sold on demand and take 3-4 weeks to recondition and ship. Electrical Requirements: 110 Volts Weight: 160 lbs Floor space: 3' x 4' In Home Warranty: Lifetime (toll free) phone support, Lifetime frame, 1 year parts on all motors, 180 days parts on entire machine, 90 days wearable replacement / repair on pads, grips, belts and cables due to manufactures defects, 30 days labor reimbursement