Ways to avoid Whistling /noise howling after power-on. At present, small hearing aids and high-power hearing. aids on the market can hardly prevent howling, and only full-digital hearing. aids can prevent howling.
eBay
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
About this itemEasy to Hear: These hearing aids feature advanced technology with intelligent sound processing and amplification. Our noise-canceling hearing aids ensure clear hearing in daily life while fitting comfortably in your ear canal. (Note: Not recommended for severe hearing loss.)Easy to Use: No complicated operations to remember. Enjoy simple one-touch control with infinitely adjustable volume. For best results: choose a slightly larger ear dome for optimal fit, start at lower volume, then gently turn the dial clockwise to increase as needed.Small and Lightweight: Wear these comfortable hearing amplifiers all day without ear pressure - perfect for conversations, TV watching, and everyday listening.Easy to Recharge: The charging case features an LED.
eBay
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. Input Noise: <=32dB. Maximum Sound Output: 118+/- 4dB.
eBay
Features:-The use of high-quality digital chips can effectively reduce noise and reduce noise damage to eardrums.-The dynamic speaker design allows the received sound to be processed to make the sound clearer.-Hearing aids can be charged for 3 hours and can be used for 25 hours. The rechargeable storage case is fully charged and can charge the hearing aid 4-5 times. -With storage box, easy to carry out, small size provides more convenience.-The sound guide wire can be bent and rotated 360 degrees, making it comfortable to wear on either left or right side.-It adopts in-ear detection, suitable for people with different ear canals. Put it into the ear, it will automatically open and close, almost invisible, and will not burden the ears with long-term use.
eBay
eBay
1 x Behind-the-Ear hearing aid (single). They are also easy to clean, making them more convenient and hygienic. This will help your product to be received safely and quickly! Style: Behind-the-Ear (BTE).
eBay
1 x Behind-the-ear hearing aid (single). Style: Behind the Ear (BTE). 1 x Instruction manual. LED Charging Display: Yes. This will help your product to be received safely and quickly! 【Easy to use】The simple and user-friendly design is suitable for elderly people, so that they can communicate more conveniently and efficiently and improve their quality of life.
eBay