PEAR® PRO TRAINING INTELLIGENCE™ SYSTEM :: Optimize your workouts, utilizing training biofeedback in an ultra comfortable, easy-to-use way with the PEAR® Pro Training Intelligence™ System. Get everything you need to train smarter with this comprehensive kit that that uses a wireless heart rate monitor and foot pod to measure your body's response during a workout, and delivers real-time coaching to keep you on track towards meeting your goals. You'll love the incredible comfort of the earphones that feature the exclusive Earlock™ Retention System that uses seven contact points to ensure a secure and comfortable fit for even your longest workouts. Get your training on track by simply turning on your PEAR® Square One Device, firing up your music and letting the Training Intelligence™ system do the rest!