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.
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About this item【Easy Operation】No cumbersome settings, intuitive button controls, no distinction between right and left ear, suitable for most people. Choose the earbuds that fit your ear size, make sure the sound button is at “1” and the on/off button is at “O”. After inserting the earbuds into the ear canal, turn on the “N” button, then adjust the mode and volume as needed, these low noise hearing aids are perfect for effortless daily use.【Rechargeable Hearing Aids】Charge hearing amplifier for adults for 2 hours and you can use it about 25 hours, meet your daily use needs, no need to worry about frequent battery replacement and charging. Package with a type-c charging cable interface charging case, can be charged.
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SAFE AND COMFORTABLE: Our hearing aids are made with the latest materials, including a nano-coated, waterproof, and sweat-proof shell. Plus, with no radiation or harm to human ears. Perfect for people with poor hearing, the earplugs can be adjusted for both left and right ears.
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This Powertone F-138 In-Ear Hearing Aid is a quality hearing aid which can help you hear the sound clearly and loudly. - Silicone ear pads in 3 different sizes, suitable for any form of ear. - If you hear a howling,check the ear (silicagel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
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Features: Clearer Sound With Noise Reduction – Advanced noise reduction technology filters out background noise, making voices and conversations sharper and easier to hear. Rechargeable & Long-Lasting – Built-in rechargeable batteries with a 400mAh charging case and 35mAh earpiece provide extended use without frequent charging. Invisible & Comfortable Design – Small and discreet skin-colored design fits naturally in the ear, ensuring comfort while remaining barely noticeable. Portable Charging Case – Lightweight charging box ensures convenient recharging anytime, ideal for travel, outdoor use, or daily activities. .
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● Digital sound amplifier: Advanced digital signal processing technology provides a high quality of natural sound, detects and identifies sound waves and changes the amplification of the channel in which the noise is located to make normal speed clearer.
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Insert the hearing aid into the ear canal and adjust its position in the ear canal until the soft ear tip fully unfolds and fills the ear canal;. If you're not using your hearing aid, turn it off. Hearing aid, non-Bluetooth version (cannot be used as headphones).
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Hearing aids can effectively reduce noise and amplify sound. Our accessories include earplugs of different sizes. This small device allows you to wear comfortably and provide a clear sound. 1 Hearing Amplifier.
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