The STH-3600 is a multifunctional treadmill that includes a powerful massager and situp stand for hips, thighs, and stomachs. This running machine is an effective way to burn extra calories and achieve a healthy lifestyle. The hi-fi speaker allows you to play music from your iPhone/MP3 player using Aux/USB, and the wheels make it easy to transport. The handrail pulse sensor enables you to monitor your heart rate as you exercise.