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 extended, so it has a certain possibility of producing howling after power-on.
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Turn on the phone and automatically enter the hearing aid mode, turn on the phone and use it, very convenient to use, more friendly to the elderly users;. Digital Mini Invisible In Ear Hearing Aids Headset Sound Voice Amplifier ITE.
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JINGHAO 1 Pair Mini Hearing Aids Rechargabl In Ear Sound Amplifier Enhancer US. Comfortable fit to your ears: This hearing aid is equipped with two different types of earplugs (standard earplugs and anti-whistling earplugs).
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Equalizer Input Noise: ≦29DB±3. 1 Pair x Hearing Aids. Hearing Aid Charging Current: ≦30mA. Battery: Built-in lithium battery. Equalizer Input Noise : ≦29DB±3. we only sales hearing amplifier. Equivalent Input Noise Level: ≦35dB.
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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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Choose suitable earplugs to keep the ear canal sealed. 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.
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About this item .
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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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