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. & 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™ & 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.