The Reebok R 5.80 features a Custom Weight Loss Center that enables you to enter your goals for time and calories burned and then customizes a workout for you. The iPod dock allows you to play your favorite music while working out. Thie Reebok R 5.80 also features a big 20" x 55" and a 2.75 hp motor with a 25 year warranty. The 300 pound weight capacity ensures the treadmill is more than strong enough for most users.