*Doran et al, 2018, Oticon whitepaper, sponsored by Oticon. Le Goff et al, 2016, Oticon whitepaper, sponsored by Oticon
*Reduction in listening effort measured with peak pupil dilation. Le Goff et al. (2016) Oticon Opn clinical evidence.
Oticon Whitepaper. Oticon Opn 1 dual microphone hearing aid compared to Alta 2 Pro dual microphone hearing aid.