Spirit CT850ENT Treadmill features a modern 15.6-inch touchscreen display and electronics package that allows one to watch TV, browse the web, and stream the favorite music. Preset programs include a wide variety of popular workouts for the average user while fitness tests, heart rate programs and a custom program are available for more serious users. The fitness test programs include a Gerkin Protocol Fitness Test and 6 Readiness Test Programs (Army, Navy, AirForce, Marines, Coast Guard, PEB). User comfort was considered with the addition of the Turbo cooling fan, five convenient accessory trays, and ergonomically positioned Heart Rate Grips. The CT850ENT also accommodates extended handrails for clients that require extra stability (sold separately).