Israel’s Nuancehear has developed the “Sound Selector” to help students with Attention Deficit Hyperactivity Disorder (ADHD). The device filters background noise to help focus on hearing a teacher or lecturer. A trial on 31 students with Clalit Health Services has been positive.

https://jewishbusinessnews.com/2020/08/18/israeli-innovation-noise-filter-for-students-with-attention-deficit-hyperactivity-disorder/

https://www.nuancehear.com/ https://www.youtube.com/watch?v=6gsSbqVUkRA