Hello, You can read the reviews here.
https://www.mysecondear.de/products/phonak-audeo-sphere-infinio
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https://www.hearingnow.co.uk/learning/phonak-infinio-sphere-a-review-by-a-deaf-audiologist?srsltid=AfmBOorAE89eh8lh7NeDKC_ceM5DiNghrJ6g-Lj6hHnn6F1C0LA7t4jO...