The E4. 0 is a compact crosstrainer with huge features! The 20kg flywheel, providing a smooth motion & high maximum resistance, coupled with the 45 cm stride length ensures anyone can exercise effectively & comfortably regardless of their ability. To keep you motivated Intermix Acoustics speakers with line-in jack are included along with an i Fit SD card reader for interactive training options, 12 standard & 3 Watts based programmes are included for motivation.