Please Read——BionicGym is an App and a Wrap that delivers vigorous exercise as you watch television and do chores - or a supercharged calorie burn while you work. The wraps go around your thighs, delivering impulses to the large leg muscles triggering them to rapidly contract and relax. At high intensities it increases your heart-rate, you begin to sweat and become breathless. You can even experience that runner's high. The only technology of its kind capable of achieving such significant results, read on to learn exactly how BionicGym works. Certified Bionic Gym Includes——- Full Manual Plugs for different outlets 4 Velcro extenders ( for expanded room) Charging code Extra wire attachment