The cause of howling/noise: To make a small size hearing aid, the internal amplifier and the microphone are close to each other. The sound is continuously received and extended, so it has a certain possibility of producing howling after power-on.
eBay
X15 Tws Wireless Bluetooth Earphone in Ear Headphones Blutooth Hearing Aids Sport Gamer Headset Phone
Aliexpress UK
Why is there a whistling during the wearing process?. We give 3 different sizes of earplugs to reduce howling and noise. Suitable for mild to moderate severe hearing loss (Reference hearing loss map).
eBay
Tws Earphone Bluetooth Wireless in Ear Headphones Blutooth Hearing Aids Sport Gamer Headset Phone Sport Headphones
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. Function: Auxiliary listening; Bluetooth headset.
eBay
Bone Conduction Hearing Aid Earphones Elderly Special Intelligent Noise Reduction Phone Calls Assistive Listening Earphones
Aliexpress UK
Insert the hearing aid into the ear canal,adjust its position in the ear canal until the soft eartip is fully deployed and fill the ear canal. Clean the ear canal before use. Comfortable: Made of high-quality material, durable and sturdy, comfortable to wear.
eBay
Original Xiaomi D101 Hearing Aid Wireless Bluetooth Earphones Running Noise Reduction Bone Conduction Earphones
Aliexpress UK
This will help your product to be received safely and quickly! And our corporation is established for the purpose of trustworthiness. We have office in Shenzhen, China and 5 warehouses that are located in AU/UK/US/DE and ShenZhen.
eBay
TWS Earphone Bluetooth Wireless Headphone Hifi Stereo Sports Games Waterproof Earbud Headset Hearing Aids With Mic Handfree
Aliexpress UK
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.
eBay
Bluetooth Earphones Gaming Headset Earbuds Tws Blutooth Earphone Wireless Hearing Aids Sport EarBuds Hifi Headphones E7s
Aliexpress UK
Support Bluetooth function for hands-free operation or phone music. - Comfortable: Made of high-quality material, durable and sturdy, comfortable to wear. Ergonomic design, soft and flexible, these hearing aids help you a lot in daily life.
eBay
E7s Tws Gaming Headset Bluetooth Earphones Earbuds Blutooth Earphone Wireless Hearing Aids Sport EarBuds Hifi headphones
Aliexpress UK
With the latest Bluetooth version, you get a greater range at faster speeds using lower power. Digital Signal Processing creates a safe experience that suppresses noise without blocking the speech signal.
eBay
X15 Wholesale Tws Earphone Bluetooth Wireless Without Box V5.1 in Ear Headphones Blutooth Hearing Aids Sport Gamer Headset Phone
Aliexpress UK