The leak also claims the headphones will look practically identical to the previous version, as shown in the photos. A new white version is not shown here according to XDA Developers who corroborated the tweet with its own teardown of the Sony Headphones Connect APK.

The headphones will also reportedly gain DSEE Extreme, which may be a new improved version of Sony’s excellent DSEE HX audio upscaling software but with some “unspecified AI enhancements”. XDA also reports that 

Finally, the headphones are said to gain multiple device switching, a pain point on the older versions. You have to manually disconnect from a device before connected to another even if both are paired on current models. If Sony can bring quick switching to the XM4s it’ll fix one of the few faults of the last generation into a formidable looking set of cans.

For more, read the latest rumours about the Sony WH-1000XM4 release date and other new features.