• Sony's best noise-canceling technology ever, the WH-1000XM4, has a 50% increase in noise removal rate. The headband has undergone the greatest evolution in the 1000X series with its noise-canceling performance • Evolution of the Driver Unit: The newly developed driver unit produces rich sound from bass to treble. It also utilizes Walkman technology for fine sound reproduction, spread and improved positioning sense • Ideal call performance for online meetings and classes. AI-evolved high-precision voice pickup technology ensures accurate and clear call quality even in noisy environments. Additionally, a structure that prevents wind noise from entering is adopted • Comfortable wearability: In addition to a refined design, it achieves comfortable wearability for long-term use with a high fit • Advanced microphone performance: Beamforming technology using four microphones on the left and right sides and AI for high-performance hands-free calling