[accessibleimage] Failing devices, designed for visually impaired

 Hi Everyone,

Apologies in advance if this isn't appropriate for this list! I'm looking
for examples of devices (of any type) which were specifically designed or
adapted to people with visual impairment, yet when you came to use it, you
found it to be failing or lacking something that you thought was quite
essential. This could be absolutely anything: from insufficient
functionalities to wrong physical shape/size/design.

Thank 

Snir

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