![Developed earphone design technology that only the user can hear without blocking the ear NTT developed a single speaker with sound wave control that delivers sound to the user while counteracting sound Developed earphone design technology that only the user can hear without blocking the ear NTT developed a single speaker with sound wave control that delivers sound to the user while counteracting sound](https://group.ntt/en/newsrelease/2022/11/09/img/221109aa.png)
Developed earphone design technology that only the user can hear without blocking the ear NTT developed a single speaker with sound wave control that delivers sound to the user while counteracting sound
Replying to @gebriellemc How to get the noice cancellation to work on ... | Best Noise Cancelling Headphones | TikTok
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