Picture this. You're pedaling along on a recumbent bike. Suddenly, you decide to push yourself and go a little faster. You feel your pulse go up. Has it gone above that all important targeted pulse range? And how do you know what the right range is for you, anyway? Until now, it was hard to say. Which is why the new Cateye EC3500 recumbent ergociser is such big news. The EC3500, with its patented earlobe sensor, bio-feedback system and other unique features offers the safest, most effective workout possible by reading your pulse and allowing you to adjust your pace.