Power Step offers a range of optional accessories to enhance your workout.
Optional Extra Heart Rate Monitor

Features:
- Heart rate express in beat per minute
- Heart rate express in percentage of estimated
maximum heart rate - Heart rate alert zone function
- Calories burned estimation function
- Fat burned estimation function
- Daily alarm and countdown timer
Optional Extra Chest Strap

Features:
- Radio frequency signal to watch
- Heart beat signal
- Soft elastic belt