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2. Earmold - Wikipedia

   en.wikipedia.org/wiki/Earmold

   An earmold (also spelled; ear mold, ear mould or earmould) is a device worn inserted into the ear for sound conduction or hearing protection. Earmolds are anatomically shaped and can be produced in different sizes for general use or specially cast from particular ear forms. [ 1 ]

3. Hearing protection device - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_device

   Sound levels of some daily activities. A hearing protection device, also known as a HPD, is an ear protection device worn in or over the ears while exposed to hazardous noise and provide hearing protection to help prevent noise-induced hearing loss. HPDs reduce the level of the noise entering the ear.

4. Building insulation material - Wikipedia

   en.wikipedia.org/wiki/Building_insulation_material

   Insulation is a barrier material to resist/reduce substance (water, vapor, etc. ) /energy (sound, heat, electric, etc.) to transfer from one side to another. Heat/ Thermal Insulation is a barrier material to resist / block / reflect the heat energy (either one or more of the Conduction, Convection or Radiation) to transfer from one side to another.

5. The 7 best OTC hearing aids for seniors, according to ... - AOL

   www.aol.com/lifestyle/the-7-best-otc-hearing...

   The sound profile is richer compared to other models, with controls for volume, balance, and directionality of sound in the app. ... These in-the-ear hearing aids are water- and dust-resistant ...

6. Earplug - Wikipedia

   en.wikipedia.org/wiki/Earplug

   Real-ear attentuation at threshold (REAT) measurements test how narrowband noises of varying frequency are attenuated with and without the custom mold in place. Testing for low-frequency attenuation can help to verify the earmold fit while testing high-frequency attenuation can verify the properties of the filter used. [6] [21]

7. We tested Zepp Clarity hearing aids and here's everything we ...

   www.aol.com/lifestyle/zepp-clarity-hearing-aids...

   Other features include noise reduction and six customizable sound settings. This model comes with a 12-month limited warranty. However, it lacks directional microphones and telecoils, which can be ...