The E55 Sole Fitness Elliptical Review mentions that this machine features an adjustable power incline that comes in quite handy especially when you want to raise or lower the motion of the elliptical and more importantly when you want to target and tone those lower muscles that are found in your body. Just like in the case of a treadmill, the moment you increase the incline, the result will be a cardio work out that is serious. This training machine also has wireless heart rate control in addition to speakers which enable you to plug in your MP3 player or iPod for you to have a great listening experience as you work out. It is also possible for you to conveniently adjust the foot pedals. The machine also has a built in fan. The extra fly wheel that the E55 elliptical has provides this machine with a stride that is more natural and smooth.