The WF-1000XM5 reduces external noise over a wide bandwidth, from low to high frequencies. It contains two proprietary processors that cancel more external noise than ever, a new high-performance driver unit Dynamic Driver X, dual feedback microphones, and innovative Noise Isolation Earbud Tips for a more stable fit. Real-time noise-cancelling processing can be optimized to provide the best performance for your environment, so you will hear a big difference, especially in airplanes, trains or buses.