My grandmother has a weak voice and needs help with amplification

[Ethan_44]

My Grandmother is in poor health and had a very weak voice. What we're trying to do is to find a way to mic her up wirelessly to her phone, then have her phone speaker amplify her voice. Does anyone have any ideas for this?

 

[kanewolf]

They make purpose built devices -- https/www.walmart.com/ip/Loud-Portable-Voice-Amplifier-LoudSpeaker-Microphone-for-Presentations-Salesman-Etc/384888679 search for "personal voice amplifier". A phone battery may not last very long.