Tips for buyers:
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. At present, small hearing aids and high-power hearing aids on the market can hardly prevent howling, and only full-digital hearing aids can prevent howling.

Ways to avoid howling/noise:
1. When the power is high (the amplified sound is large), howling is more likely to occur. Therefore, gradually increasing the volume of layer can effectively prevent howling.
2. When the ear canal is completely closed, there is no howling sound. So, please use hearing aids after cleaning your ear canal, and test the ear tips from largest to smallest to find the most suitable ear tips.
3. After the hearing aid enters the ear canal, it is recommended to push the hearing aid with your fingers and hold it for 1-2 seconds, and then release it completely from the earplug.

In addition: If you don't know how to use it or there is a problem with your hearing aid, please don't rush to leave a negative review and contact us. Thank you.

Description

“Bluetooth Version"Digital Hearing Aid' core advantage of functions

• (1) It has a built-in Bluetooth chip that can be paired directly with devices such as smartphones, tablets, and smart TVs, just like Bluetooth earphones. This means that the sound of phone calls, video chats, online meetings, music, podcasts, and TV/ video can all be directly transmitted to hearing aids in the form of digital audio streams. This "direct connection" avoids the sound from being picked up and processed by the hearing aid microphone through the air, greatly reducing sound distortion and significantly improving clarity in multimedia scenes.
• (2) Provides a clearer and more private multimedia listening experience.When answering the phone, there is no need to hold a mobile phone, watching TV does not affect family members, and listening to music has more authentic sound quality. Many models also support finer volume, program adjustments, and hearing data tracking through mobile apps.

Rated voltage: DC 1.5V

Packing list:

1 * Hearing Amplifier
1 * Cleaning brush
4 * Earplugs
1 * USB cable
1 * Instructions

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Without Bluetooth

USB Rechargeable: Safe and rechargeable, with a long standby time, no need to replace the battery, environmental-friendly, and power-saving.	Convenient: Easy to operate and use. One button to switch the working modes, to adapt to different occasions, whether at home or on a noisy street, to bring you clear sounds.	Noise-canceling: Built-in intelligent chip, clear and noise-canceling, no worry about the noisy environment.

Strong shell Anti Falling And Durable high quality hearing aid is designed for the elderly,it still can be used normally even if it fell from two meters high	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.	packing list : 1 x Hearing Aids & 1 x USB Charging Cable & 5 x Earbuds & 1 x Brush & 1 x Container Box & 1 x User Manual

Specifications: 

Maximum Sound Output: 118+/- 4dB
Sound Gain: >= 32dB+/- 2dB
Total Harmonic Distortion: <= 7%
Frequency: 300-3800MHz
Input Noise: <=32dB
Voltage: DC 3.7V
Current: <=2mA
Charging Time: 3 hours
Normal Working Time: 45 hours

Q&A:
Why does the hearing aid have loud screeching sound? How to solve?
Because the contact part of the earplug and the ear canal is not completely closed, the sound amplified by the hearing aid leaks from the gap and is amplified again by the microphone, so there will be a howling sound.
Solution:
1. Turn the volume to minimum first, then turn on the switch after wearing it well.
2. Choose suitable earplugs to keep the ear canal sealed.
How to Care for Hearing Aids?
1. Dryness: Hearing aids are electronic products and are prone to moisture. Pay attention to waterproof, moisture-proof and dust-proof.
2. Cleaning: Wipe with a dry, soft cloth. Use a small brush to clean the earwax inside and around the sound hole of the hearing aid.
How long can I wear it every day?
It is recommended to control it to 1-3 hours a day for the first week of wearing it, and extend it to about 5 hours a day after a period of use, depending on your own situation.
According to many customer tests, you will get used to it after 2-3 weeks