Sony WF-1000XM4 said to be the first True Wireless Hi-Res headphones

While we still do not officially know if they exist (that would seem logical enough, however …), the design and certain technical characteristics of the future high-end True Wireless headphones from Sony, the WF-1000XM4, have leaked onto the web. . A Reddit user shared what appears to be a photo of a Sony earphone and it is believed to be the successor model to the excellent WF-1000XM3. If one relies on this disclosure, the Japanese manufacturer would have revised the design in depth.

The change is now ?

The design would evolve into a “button” format, an approach similar to that adopted by Samsung for its Galaxy Buds Pro. We notice several elements such as the presence of a vent to allow air to pass through the upper part. They will therefore probably have an active noise reduction system. By the way, the silicone tip seems particularly thick, which should also improve passive insulation.

The site TheWalkmanBlog evokes for its part the presence of a microphone hidden in the small golden circle, but obviously it is impossible to certify that for the moment.

The first True Wireless Hi-Res?

A second image supposed to come from the box indicates a battery life of 6 hours with active noise reduction and up to 18 hours including the charging box. But more importantly, we see the mention of Hi-Res Audio Wireless, which indicates that the headphones would be able to send a very high quality wireless audio stream with 24-bit / 96 kHz sampling, a very welcome novelty that was missing. to the previous model.

If the information is correct, we can also deduce that the headphones will use Sony’s in-house codec, the LDAC, like their big hoop brother the WH-1000XM4. But to be truly Hi-Res, the headphones must also offer a wide frequency response, wider than the 20 to 20,000 Hz theoretically symbolizing the limit of human hearing. If this were the case, then the 1000XM4 would be the first True Wireless headphones on the market to offer Hi-Res certified sound.

Even if the interest of such characteristics is debated among audiophiles, it would still be a real differentiating element compared to the competition.

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