Polar RCX5 Heart Rate Monitor Heart rate monitor offers numerous features and progress-tracking data; Sport Profiles let you switch between different sports; unit helps you improve performance with endurance training programs During your workout, you can see your heart rate info even in water, with comfortable and disturbance-free hybrid transmitter Smart Coaching features include Race Pace to help you cross the finish line in time, and ZoneOptimizer to help you train at the right intensity Polar RCX5 Comes with: Polar RCX5 training computer Polar WearLink+ Hybrid transmitter Polar DataLink data transfer unit RCX5 Getting Started Guide Includes limited two-year manufacturer's warranty