See reviews below to learn more or submit your ... day full-refund return policy for hearing aids. Does Costco sell hearing amplifiers? Costco does not sell hearing amplifiers.

[NotionSunday] put together a hearing amplifier project that probably doesn’t hit many of those design criteria. However, thanks to a 3D printed case, it looks pretty good. The device uses a ...

However, over the years, the technical specs and developments of these products have made them true over-the-counter hearing aids. I recently had the opportunity to review the Sona, the highest ...

The impedance ended up close to 8 ohms, perfect for feeding directly from the speaker terminals of an old stereo amplifier. Pumping 160 Watts into the coil allows the hearing-aid wearers below ...