Elliptical trainer with manual incline works different muscle groups to maximize your training. Get the most out of low-impact training. Adjust the incline to target a variety of muscle groups while you work out. 8 programs, EKG™ hand grips and LED pacing coach keep you on track. Digital Quick Resistance™ allows you to change the resistance level without stopping. Built-in MP3 speakers let you plug in your MP3 player and listen to your tunes without headphones.