Weslo CADENCE 850 treadmill blends advanced technology with innovative design to let you enjoy an excellent form of cardiovascular exercise in the convenience and privacy of your home. The treadmill features a walking belt coated with PERFORMANT LUBE™, a high-performance lubricant that eliminates the need for silicone spray or other substances. It also comes with a console that requires three "AA" batteries (not included); alkaline batteries are recommended.