Upright Cycle C545U SportsArt cycles are self-generating; no-outside power source required. The contact heart rate is standard and a wireless Polar® HR receiver is built in, multiple language options are included (English, Spanish and French). Fore-mid-aft seat adjustment allows for optimal seat positioning Unique low profile shroud allows easy access Oversized pedals feature quick strap adjustment for easy customization Self-generating – no outside power source required Overall Weight Resistance Level Maximum User Weight FEATURES AND SPECIFICATIONS FEEDBACK. Level , Time , Distance , Calories , Speed , RPM , METS , Human Watts & Actual HR , WT Loss HR as well as Cardio HR WORKOUT PROGRAM Manual , Random , Interval (x3) , Plateau , Fat Burn , Fit Test (YMCA) , HRC (x3) Power Requirement Self-Generating ACCESSORIES CSAFE port (standard) Headphone jack with built in volume control (x2) USB port (x2) for device charging (standard) iPod, iPhone 30-pin connector option (Optional with LED console) ECOFIT™ & SA Well+™ workout tracking function (Optional) External Mount TV Bracket (OPTIONAL) HR transmitter belt (Optional) Optional TV tuner (Optional with 15" console)