If the earmuffs are not fully inserted into the ear canal, or if the air leaks out of the earmuffs, it will cause an annoying whistling sound. -Specially designed for hearing-impaired people, more suitable for the ear canal.
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Features:-The volume can be easily adjusted with just a screw turn-Built-in energy-saving rechargeable battery prolongs battery life and extends the time between charges, supporting all-day use.-The charging box can be fully charged in 1.5 hours, and after being fully charged, it can achieve an ultra-long standby time of 35-48 hours.-Each weighs only 3 grams, which is convenient and comfortable to wear. It comes with earplugs of different sizes to fit everyone's ears perfectly.-It adopts a compact and lightweight design, which satisfies your convenience of carrying and invisible wearing, and can be used anytime and anywhere.Specification:Colour: black&red&blueStyle: in the earPower source: built-in 300mAh batteryEquivalent input noise: 23dB &plus.
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They amplify speech while effectively reducing background noise, and with a sound gain of 32 dB higher than most other hearing aids, you'll never miss a conversation with family and friends again. Hearing amplifier are the perfect gift for the hearing-impaired elderly.
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About this item .
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Hearing aid 1. Input noise: <=32dB. Total harmonic distortion: <= 10%. Gain: >= 40dB+/-5dB. Maximum output power: 129+/- 3dB.
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Input noise: < =32dB.
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Features:-The volume can be easily adjusted with just a screw turn-Built-in energy-saving rechargeable battery prolongs battery life and extends the time between charges, supporting all-day use.-The charging box can be fully charged in 1.5 hours, and after being fully charged, it can achieve an ultra-long standby time of 35-48 hours.-Each weighs only 3 grams, which is convenient and comfortable to wear. It comes with earplugs of different sizes to fit everyone's ears perfectly.-It adopts a compact and lightweight design, which satisfies your convenience of carrying and invisible wearing, and can be used anytime and anywhere.Specification:Colour: black&red&blueStyle: in the earPower source: built-in 300mAh batteryEquivalent input noise: 23dB &plus.
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ACCESSORIES INCLUDED: Each 4 different size of earplugs to help adjust to your ear canal for a comfortable fit. Each hearing amplifier included an extra button battery. 2x Hearing aids. It can be comfortably worn in either ear.
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