Powerbeats Pro 2 is the most advanced and best-fitting headphone we've ever made. We added the best-performing Active Noise Cancelling (ANC) we've ever developed, plus Transparency mode to let you hear the world around you. You want real-time data about your workout performance, so we built Powerbeats Pro 2 with accurate heart rate monitoring sensors. And Powerbeats Pro 2 is sweat and water resistant with an IPX4 rating, so they're tough enough to handle training in rain, snow and heat.