The cause of howling/noise: The internal amplifier and the microphone are close to each other of the hearing aid, and the sound is continuously received and expanded, so it has a certain possibility of produce howling after power-on.
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X15 Wholesale Tws Earphone Bluetooth Wireless Without Box V5.1 in Ear Headphones Blutooth Hearing Aids Sport Gamer Headset Phone
Aliexpress UK
We give 4 different sizes of earplugs to reduce howling and noise. Peak Gain(dB): 35dB, suitable for mild to moderate hearing loss (Reference hearing loss chart). Insert the hearing aid into the ear canal, adjust its position in the ear canal until the soft earplug is fully deployed and fill the ear canal.
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Wireless Fone Bluetooth Headset Hearing Aid Magnetic Extra Long Standby Neck Strap Hanging Waterproof Sports Headset with Mic
Aliexpress UK
About this itemREVOLUTIONARY DIGITAL TECHNOLOGY: The rechargeable feature the latest digital technology. This advanced technology enables the devices to bring back natural sound to the, restoring the clarity of everyday life. Additionally, the upgraded chip effectively handles background, allowing users to clearly even in environments. With minimal whistling and feedback.INVISIBLE & COMFORTABLE DESIGN: These are ergonomic in design lightweight, and nearly invisible, ensuring a comfortable and discreet wearing experience. The device fits securely in the canal, eliminating worry of them falling out or getting lost. Its soft and comfortable construction provides a natural and comfortable fit. The lightweight portable charging carry case adds to the convenie.
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Xiaomi Wireless Earbuds TWS In Ear Bluetooth Earphone Headphone ENC Noise Reduction Hearing Aids Sports Gaming Music Headsets
Aliexpress UK
【SMALL AND CONVENIENT DEVICE】: Compared to conventional devices, it has a miniature appearance comparable to headphones, so you won't attract any unpleasant glances when using it. The amplifier is ergonomically designed to fit the ear canal, won't fall off easily, and is comfortable to wear. 【ADJUSTS TO THE EAR WITHOUT SPRAYING】: Compared to similar products on the market, we have completely solved the problem of harsh sound when worn. We use more advanced technology and chips. It amplifies speech while reducing background noise, making listening easier and more enjoyable in noisy environments. .
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TWS F9-5 Earphone Bluetooth Earphones Wireless Headphones Hifi Stereo Sports Earbuds Headset Hearing Aids With Mic Handfree
Aliexpress UK
Input Noise:≤32dB. We will respond to you within 24 hours and do our best to help you out! Max sound output:118±4dB. Sound gain: ≥32dB±2dB.
eBay
Oticon Opns 1 Opns 2 Opns 3 MiniRITE T R Hearing Aid Programmable RIC Bluetooth Rechargeable Wireless Digital 48 Channel
Aliexpress UK
Input Noise:≤32dB. Max sound output:118±4dB. Sound gain: ≥32dB±2dB. Normal working about 35 hours.
eBay
TWS F9-5 Earphone Bluetooth Earphones Wireless Headphones Hifi Stereo Sports Earbuds Headset Hearing Aids With Mic Handfree
Aliexpress UK
eBay
Auxiliary headphones with hearing aid function hanging ear noise reduction designed for the elderly
Aliexpress UK
Mini size, Bluetooth earphone appearance, different from old hearing aids, wearing it will not make people notice anything unusual. This product is single and requires binaural hearing aids. It is also a Bluetooth earphone, and after turning on, long press to switch to Bluetooth mode.
eBay
E7s Tws Gaming Headset Bluetooth Earphones Earbuds Blutooth Earphone Wireless Hearing Aids Sport EarBuds Hifi headphones
Aliexpress UK