Polar RCX5 TDF GPS Heart Rate Monitor (Yellow/Black) 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 Comes with RCX5 Tour de France training computer, WearLink+ Hybrid transmitter, G5 GPS sensor and clip, CS cadence sensor W.I.N.D., universal bike mount, DataLink data transfer unit, and associated user manuals Includes limited two-year manufacturer's warranty