https://pubchem.ncbi.nlm.nih.gov/patent/US-10796692-B2
Assistive listening device and human-computer interface using short-time target cancellation for...
US-10796692-B2 chemical patent summary.
assistive listening devicehuman computer interfaceshort timeusingtarget
https://www.phonak.com/de-ch/hoerloesungen/mikrofone/roger-focus-ii
Assistive Listening Device for Children - Roger Focus II | Phonak
The combination of Roger Focus II and a Roger microphone provides a hearing solution to help children overcome the challenges of hearing over distance and in...
assistive listening devicefor childrenfocus iirogerphonak