No matter how hard you push yourself on the X3, its Whisper Stride™technology keeps things remarkably quiet while delivering a smooth, fluid motion. Contact heart rate hand sensors on the stationary handlebars let you track your workout progress as you’re pushing through each stage of your workout. And the Track Console provides added workout variety & advanced programs to better help you reach your fitness goals.*iPod not included. Coach Zone Activity Zone with LED Display & Glute Toner and Arm Toner™ Workout Enhancements Contact heart rate hand sensors on the Ergo Grip™ stationary handlebar & Wireless heart rate monitoring system (Chest strap included) Effort is dispersed to your legs & arms, so you can burn more calories with less perceived exertion Ergo Grip™ stationary handlebar provides stability during lower-body only workouts Oversized, dual accessory tray & built-in reading rack Total-body workout with synchronized upper- & lower-body movement Whisper Stride™ technology employs self-aligning ball bearings to create a quiet, fluid motion that is perfect for the home environment.