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).
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About this item .
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Making them both stylish and practical.
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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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【User-Friendly Design】 The hearing aids for seniors feature a simple, intuitive interface, ensuring ease of use. 【Advanced Noise Reduction】 The OTC Hearing Aids state-of-the-art automatic noise reduction feature ensures you hear only what matters.
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2 x Hearing Aids. It takes about 2 hours to finish charging and you can use it for about 20 hours. You can clearly hear the sound whether indoors or outdoors. Features： - Mini size, portable and convenient, with the hidden design, it looks like the Bluetooth headset, making yourself more confident.
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We will respond to you within 24 hours and do our best to help you out!
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Choose slightly larger earplugs to avoid whistling. 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 hear a whistle, check whether the ear (silicone) is suitable, whether the size of the plug is tight.
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