To Customer: Thank you for choosing K007. Our store is committed to providing you the best quality products Service. If you have any questions about the products after receiving the packages, please contact us and we will solve them for you as soon as possible. Attention: The goods will be shipped from UK Delivery time: 2 to 4 working days Support 60 days return policy Reply within 24 hours Choose:Upgraded version(1 pair) About This Item: .
eBay
TWS F9-5 Earphone Bluetooth Earphones Wireless Headphones Hifi Stereo Sports Earbuds Headset Hearing Aids With Mic Handfree
Aliexpress UK
Causes of whistling/noise: In order to make a small hearing aid, the internal amplifier and microphone are placed close to each other. The sound is continuously received and expanded, so there is a certain possibility of whistling after power-on.
eBay
TWS F9 Earphone Bluetooth Earphones Wireless Headphones Hifi Stereo Sports Earbuds Headset Hearing Aids with Mic Handfree
Aliexpress UK
Clean ear canal before use and ensure proper ear tip fit. 2 Hearing Aids (Red + Blue). With a Peak Gain of 117dB and 32dB peak gain amplification, this hearing aid is perfect for users with moderate to severe hearing loss.
eBay
Xiaomi N30 Wireless Earbuds TWS In Ear Bluetooth Earphone Headphone ENC Noise Reduction Hearing Aids Sports Gaming Music
Aliexpress UK
If the earmuffs are not fully inserted into the ear canal, or if the air leaks out of the earmuffs, it will cause an annoying whistling sound. 【HEARING AIDS】-Different from traditional head-mounted and ear-hook hearing aid,Our hearing amplifier is very small and lightweight,Nearly invisible that is convenient for you to attend various occasions.
eBay
JINGHAO Hearing Aid Digital In-Ear Enhancer Sound Voice Hearing Amplifier Rechargeable
Aliexpress UK
Choose:Upgraded version(1 pair) About This Item: -Specially designed for hearing-impaired people, more suitable for the ear canal. Even when used for a long time, there is no pain. -Your hearing aids can be charged using the detachable charging case (you will need to charge the charging case first). -Maximum gain is 117dB, suitable for moderate to severe hearing loss (see hearing loss table). -If the earmuffs are not fully inserted into the ear canal, or if the air leaks out of the earmuffs, it will cause an annoying whistling sound. We offer 3 different sizes of ear tips to reduce whistling and noise. -Super-mini size and light weight for easy carrying. .
eBay
Neck strap hearing Wireless Bluetooth Ear Machine Noise Canceling Headphones For The Elderly Rechargeable Hearing Aid amplifier
Aliexpress UK
Choose:Upgraded version(1 pair) About This Item: -Specially designed for hearing-impaired people, more suitable for the ear canal. Even when used for a long time, there is no pain. -Your hearing aids can be charged using the detachable charging case (you will need to charge the charging case first). -Maximum gain is 117dB, suitable for moderate to severe hearing loss (see hearing loss table). -If the earmuffs are not fully inserted into the ear canal, or if the air leaks out of the earmuffs, it will cause an annoying whistling sound. We offer 3 different sizes of ear tips to reduce whistling and noise. -Super-mini size and light weight for easy carrying. .
eBay
Unisex Bluetooth Hearing Aid Device Wireless Remote Control Invisible Earbuds for Elderly People with Mild to Severe Hearing Los
Aliexpress UK
If the earmuffs are not fully inserted into the ear canal, or if the air leaks out of the earmuffs, it will cause an annoying whistling sound. - Specially designed for hearing-impaired people, more suitable for the ear canal.
eBay
X15 Wholesale Tws Earphone Bluetooth Wireless Without Box V5.1 in Ear Headphones Blutooth Hearing Aids Sport Gamer Headset Phone
Aliexpress UK
If the earmuffs are not fully inserted into the ear canal, or if the air leaks out of the earmuffs, it will cause an annoying whistling sound. -Specially designed for hearing-impaired people, more suitable for the ear canal.
eBay
Pro 60 TWS Wireless Bluetooth Headset Air Pro Earbuds with Mic Wireless Headphones Hearing Aids Stereo Fone Bluetooth Earphones
Aliexpress UK