The latest wireless headphones from Bang & Olufsen, the Beoplay EX earbuds, will go on sale next month. Each headphone features a large 9.2 mm driver and adaptive active noise-cancelling technology. The gadget has six microphones built into the stick of the earbud for improved call quality.
https://www.notebookcheck.net/Bang-Olufsen-launches-the-Beoplay-EX-earbuds-with-9-2-mm-drivers.614566.0.html