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 -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. .
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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.
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🔥🔥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. 1 pc or 1 Pair Hearing Aids (BLUETOOTH).
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Sound gain: > 30dB and 15dB. Frequency range: 500-5000Hz. Current: ≤1.2mA. Product material: ABS. Product color: black. If you are unhappy with the item for any reasons. Input peak sound: < =32dB. Total harmonic distortion: ≤10%.
eBay
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. Input Noise: <=32dB. Maximum Sound Output: 118+/- 4dB.
eBay
Features: -Suitable for people with mild to moderate hearing loss. -Built-in rechargeable battery, no need to replace the battery, it can be used continuously for up to 12-18 hours after being fully charged. -It's easy to use with just two buttons, a scroll wheel for volume adjustment, and a slider for power on/off. -Suitable for many occasions, whether outdoor or indoor activities, it is very suitable for long-term wear. -The package includes 12 ear tips and a cleaning brush. Specifications: Material: silicone+ABS+metal Color: black Sound gain: 30±5dB Frequency range: 450-4500Hz Signal-to-noise ratio: ≤32dB Earphone size: 0.47*1.7 inches .
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To Dear buyer, ✅The delivery time (EDT) on the listing is only the estimated delivery time of eBay. ✅Please dont worry about the delivery time,usually it only takes 2-3 days to arrive you as we ship the package from UK via Royal Mail. ✅Any delay, we will send you an email in advance.Please rest assured to buy. ✅Please contact us BEFORE you give us neutral/negative feedback or open the return request, so that we can satisfactorily address your concerns. Attention: The goods will be shipped from UK - Support 60 days return policy - Reply within 24 hours Features: .
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