"span""The Wahoo Fitness Blue HR heart rate monitor is the world's first Bluetooth Smart heart rate monitor made for the iPhone 5, iPhone 5S, iPhone 5C, iPhone 4S, new iPod Touch (5th generation), iPad (3rd and 4th generations). Wahoo has made it their goal to demystify heart rate training because there's no quicker way to see results than to integrate a heart rate monitor into your workouts. Wahoo's proprietary Burn and Burst Heart Rate Training Plans are only found in the free Wahoo Fitness App. Burn plans help you shed pounds, and Burst plans help you shed minutes. And both help you do it faster by training smarter. No Zones. No Math. Just two simple choices to help you reach your goals faster. Wahoo Fitness's in-house physiologists have taken the traditional ""five-zone approach"" to heart rate training and reduced it to two key heart rate numbers. The Burn, which is the heart rate at which your body utilizes fat as the primary fuel source; and The Burst, the recommended heart rate that should be maintained for short durations to improve speed and performance. Wahoo has created Beginner, Intermediate and Advanced Burn and Burst training plans customized to your individual skill level and fitness goals. TECHNICAL DETAILS Blue HR setup is super easy. Wrap the strap around your back, and snap the sensor into place. Make sure that the sensor is located on your sternum or just below your breasts, and that the Wahoo Fitness logo is facing up. Download and open the Wahoo Fitness App or one of dozens of compatible Apps. Pair the Blue HR within the App's settings menu. Now you are ready to work out.