What You Need to Know about Hearing Aids
Hearing aids have been around for decades. The first hearing devices were just conical devices that you held up to your ear so that a person could speak into them. This would funnel the sound directly into your ear.
Now there are more impressive types of hearing aids, working with a higher degree of technology. So, in modern times, how do hearing aids work?
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Now there are more impressive types of hearing aids, working with a higher degree of technology. So, in modern times, how do hearing aids work?
What You Need to Know about Hearing Aids
Hearing aids have been around for decades. The first hearing devices were just conical devices that you held up to your ear so that a person could speak into them. This would funnel the sound directly into your ear.
Now there are more impressive types of hearing aids, working with a higher degree of technology. So, in modern times, how do hearing aids work?
Now there are more impressive types of hearing aids, working with a higher degree of technology. So, in modern times, how do hearing aids work?
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What You Need to Know about Hearing Aids
What You Need to Know about Hearing Aids
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Product Details
| BN ID: | 2940012306647 |
|---|---|
| Publisher: | Ray Poirier |
| Publication date: | 02/17/2011 |
| Sold by: | Barnes & Noble |
| Format: | eBook |
| File size: | 87 KB |
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