The Self-Powered C535U Upright Cycle by SportsArt is an upright cardio bike built for residential and light commercial application. The C535U is ideal for home gyms, fitness studios and apartment building gyms. Save on electricity costs with the self-powered design that requires no outside power, which allows the user to set up and use anywhere they desire. Entry to the C535U is made easy through the low profile shroud and the user-friendly seat is adjustable up and down and front to back to accommodate any size user. Oversized pedals disperse the resistance more evenly across the feet and quick adjustment straps are convenient for multiple users. 8.5:1 gear ratio and 40 electromagnetic resistance levels complement the many included fitness programs designed to reach the targeted heart rate for increase aerobic capacity and accelerated fat loss. While training on your SportsArt upright exercise bike you can keep yourself entertained with headphone jack and integrated audio volume controls and USB charging outlets (x2). The C535U features a Polar-compatible wireless receiver (chest strap NOT included) for telemetry heart rate interaction to allow the user to monitor and achieve their targeted heart rate zone for maximum fitness and fat burning results. Cardio Advisor shows heart rate and optimal zones for weight loss and cardio. Tri-color, multi segment LED console display readouts include Workout Level, Time, Distance, Calories, Speed, RPM, Watts, METs, Heart Rate, WT Loss Zone, Cardio Zone, Active Zone. 10 integrated quick start keys help you find workouts faster. Multiple language options (English, Spanish, and French). SportsArt's industrial-quality manufacturing provides dependability and functionality year after year. Warranty: Residential and Light Commercial use up to 6-hours per day (in non-dues facilities). Lifetime frame. 5 years parts and wear items. 3 years labor. 90 days high wear items.