XTERRA FS3.5 Elliptical Ergonomic 17" stride length provides a comfortable elliptical motion Aluminum wheel tracks allow the pedals to slide smoothly with minimal friction Blue & yellow backlit LCD window (5"x2.5") is easy to read - displays program profile, time, speed, distance, calories, pulse and resistance level Motivating programs include 24 pre-set, 2 heart rate control and manual Built-in audio jack with speaker for MP3 player