It is caused by amplified sound from the hearing aid getting back to the micropphone and being re-amplified. Ways to avoid Whistling /noise Once the hearing aid is properly seated in your ear,the whistling will generally stop.
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Have a screeching sound?. Hearing Aids With Low Noise - HOLFENRYhearing aids for senior have16 channels of sound processing. This can help you cut out noise and regain lost sound. Easy To Use - ①Choose the earplugs for hearing aids that fit you well, and let the hearing aids for senior fit tightly into your ear holes.
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2 Hearing aids. fits perfectly behind the ears and even comfortable to wear with any pair of glasses. These are the simplest ready to use personal hearing amplifier devices. Using the bendable ear line to place, easy to adjust when you put it into the ear.
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It can greatly reduce noise, provide clear sound quality. we only sales hearing amplifier. Equivalent Input Noise Sound Level: ≤29dB+3. Frequency Response Range: 400Hz-4500Hz. Fine quality material, safe and non-toxic.
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Easy To Use - ①Choose the earplugs forhearing aids that fit you well, and let the hearing aids for senior fit tightly into your ear holes. ②After wearing the hearing aids, press and hold the touch button on the hearing amplifier to turn it on.
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✔️ People with mild to moderate hearing loss. 🔊Crystal Clear Sound – Advanceddigital noise reduction technology filters background noise and enhances voices. 📦Portable & Lightweight – Small enough to carry anywhere – perfect for travel or daily use.
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Sound gain:>= 35dB+/- 5dB. Total harmonic wave distortion:<= 5%. Input Noise:<=32dB. Max sound out put:118+/- 3dB. Main unit, Charging 2~3 hours for 20 hours use.
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A Mini design Hearing aid for portability, invisible and convenient to carry. It makes you feel more comfortable. - Hearing aid charging current:≦30mA. Reference Test Gain: 23dB ±5dB. 2 x Hearing aid.
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