NTT Sonority Inc., a member of the wider NTT Group, recently announced it developed an entirely new type of earphone that enhances user safety and comfort. The earphone, which uses a technology called the “Personalized Sound Zone” (PSZ), marked the entrance of NTT — the global IT giant heavily invested in fundamental research, telecommunications, and emerging technologies — into the broad world of consumer electronics. The launch was announced while NTT Research hosted the 2023 edition of its Upgrade Reality Summit in San Francisco, California — an annual NTT event that features the group’s several arms showcasing various innovations and technologies that will help to power the future. ‘Own your sound zone’: How NTT Sonority’s new earphones power immersive audio experiences – New York Tech Media (nytech.media)