Powerbeats Pro 2 is the most advanced headphone we’ve ever made, with secure-fit earhooks that stay locked in as you train. With over 1,500 hours of athlete testing to help ensure a secure, comfortable fit for any ear shape and intensity level. For absolute workout focus, we added the best-performing Active Noise Cancelling (ANC) we’ve ever developed, plus Transparency mode to let you hear the world around you, ensuring the best listening experience wherever you train.