3 ms·
I wonder how different it is from something like this: https://www.ebay.com/itm/Pocket-Hearing-Aid-Sound-Voice-Amplifier-Volume-Control-For-The-Deaf-The-Elderl
by joerango 6y ago
I wonder how different it is from something like this:
https://www.ebay.com/itm/Pocket-Hearing-Aid-Sound-Voice-Amplifier-Volume-Control-For-The-Deaf-The-Elderly/264761857445 https://www.ebay.com/itm/Pocket-Hearing-Aid-Sound-Voice-Ampl...