Recently, twitter user justplayinghard shared his analysis results of Sony's headset connect app, which contains code related to wh-1000xm4.Interestingly, as xm3's successor, the new wireless headset can also pair with two devices. As a contrast, the current commercial models need to be re connected before using other devices.

In addition, Sony may introduce "smart talking" for wh-1000xm4. This feature allows the headset to detect the ambient volume and automatically adjust it so that the user can easily talk to people without removing the headset.

Although the old headset also supports similar environmental sound features, it is not so convenient to operate. The leaked images also show that the WH-1000XM4 looks like XM3.

In fact, in March, the Brazilian regulatory agency Anatel had already exposed the authentication documents and photos of wh-1000xm4, which seemed slightly thicker than xm3. However, the new product is expected to increase the endurance to 40 hours (an increase of 4 hours).

Although the software code does not mean Sony will release wh-1000xm4 soon, it is expected that the new product will come soon, given that the Federal Communications Commission (FCC) approved it as early as the end of 2019.