The WH-1000XM4 is a pair of wireless over-ear headphones developed by Sony. They are known for their excellent noise-canceling capabilities, which help block out ambient sounds, making them ideal for travel or busy environments. The headphones also feature touch controls for easy playback and voice assistant integration. In addition to noise cancellation, the WH-1000XM4 offers high-quality audio performance with support for various audio codecs. They provide up to 30 hours of battery life on a single charge and come with a quick charge feature, allowing users to enjoy music for hours without interruption.