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
Features:-The built-in rechargeable battery can be used for up to 30 hours on a full charge, and it only takes 2-3 hours to charge. It also comes with a charging case that can be charged 4-5 times, and it only takes 3-4 hours to fully charge the charging case.-Adopting intelligent noise reduction system, it can detect and sense noise waves, change the gain of the channel where the noise is located, and clearly identify the speed of normal sound waves.-The compact size makes it easy to carry and use anywhere.-It is packaged in an exquisite gift box, which is an ideal choice whether for personal use or as a gift to relatives and friends.Specifications:Battery capacity: 300mAhEquivalent input noise: ≤32dBCurrent: ≤2mARated voltage: 3.7vWorking time: ≧30.
eBay
This well made sound amplifier hearing aid can reduce noice and provides good quality sound. 1x Ear sound amplifier. 1x Charging dock. Input Noise: ≤32dB. Max Sound Output: 130dB±3dB. Sound Gain: 30±5dB.
eBay
Hearing Aid for the Elderly Easy to Operate One Touch Adjustment-Built-in Noise Reduction-Rechargeable Hearing Aids Features: 1. Audifonos Para Sordos Adultos Mayores Recargables: Designed for individuals with mild to moderate hearing loss, our hearing aids provide clear, amplified sound that enhances daily life. Comfortable, discreet and easy to wear, they are ideal for seniors who value independent living. .
eBay
?Shipping Warehouse: UK warehouse ?Delivery method: Royal Mail (with tracking number) ?Delivery time: within 2 to 4 working days ?Reply within 24 hours Features: .
eBay
Rechargeable Hearing Aids for Seniors-Digital Hearing Amplifiers with Noise Cancelling Crystal Clear Sound Quality Voice Recognition&Tinnitus Relief Wireless Charging Case Features: 1. A true OTC Hearing Aid,Not Just Amplification: hearing aids are designed with an advanced digital chip that significantly reduces background noise while enhancing speech intelligibility for seniors and adults,ensuring effective communication and easy access to information. .
eBay
Features:-There are five levels of volume control with beep prompts.-Equipped with portable charging case, 3-4 hours to full power of the case, can offer totally 36-90 hours of use. -The operation is simple, long press to turn on and short press to adjust the volume, making it convenient for the elderly to use.-High-definition sound quality enables barrier-free communication, and the full-scale gain is greater than 35dB.-The cochlear ergonomic design is comfortable to wear and can be used for a long time.Specification:Material: ABS+siliconeMAX OSPL90 (dB SPL): ≤115dB+3dBHFA OSPL90 (dB SPL): 110dB±4dBFOG:30dB±3dBHFA FOG:29dB±3dBFrequency range: F1<400Hz, F2>4700HzTHD 500Hz:≤5+3%THD 800Hz: ≤5+3%THD 1600Hz: ≤5+.
eBay
It is caused by amplified sound from the hearing aid getting back to the micropphone and being re-amplified. The cause of howling/noise: To make a small size hearing aid, the internal amplifier and the microphone are close to each other.
eBay