Mini invisible digital hearing adjustable sound amplifier portable hearing s earphones for the deaf elderly

Ts for buyers:

The cause of howling/noise: The internal amplifier and microphone of the hearing are very close, and the sound is continuously received and expanded, so there is a certain poibility of howling after turning on. The small hearing s and high-power hearing s currently on the market can hardly avoid howling, and only all-digital hearing s can avoid howling.

Ways to avoid howling/noise:

1. When the power is high (the amplified sound is loud), howling is more likely to occur. Therefore, gradually increasing from a low volume can effectively avoid howling.

2. When the ear c is completely sealed, there is no whistling sound. Therefore, please use hearing s after cleaning the ear c, and test the earplugs from large to small to find the most suitable earplug.

3. After the hearing enters the ear c, it is recommended to push the hearing with your fingers and hold it down for 1-2 seconds, and then release it so that the earplugs are fully extended.

In addition: If you don’t know how to use it or your hearing has a problem, please don’t rush to leave a bad review and contact us. thank you.

feature

1. Mini cic design

2. High-power ch noise reduction

3. USB charging (no need to replace the battery)

specification:

material: plastic

Color: skin color, white (optional)

Maximum sound output: 115+/-3dB

Sound gain: ≥28dB+/-5dB

Total harmonic distortion: ≤3%

Frequency range: 300-3500MHz

Input noise: 32dB

Voltage: DC1.5V

Current: ≤2mA

Hearing (each): Built-in 25mAh

Charging time: ≤5 hour

Working time: ≤25 hour

Package Included

1 x hearing

4 x earplugs (different sizes)

1 x User Manual

1 x USB charging cable

Warm reminder

1. Turn the volume to minimum before wearing.

2. Choose a slightly larger earplug to avoid whistling.

3. Gradually increase the volume to avoid sudden increase in sound.

4. If you hear howling, check whether the ears (silicone) are suitable, whether the size of the plug is tight,

Choose the right earplugs and plugs to ensure no air leakage.

5. Keep the earplugs clean.

note

Charger input: AC100-240V, 50-60Hz / 0.15A

Charger output: 5V, 1000mA

1. Please use the matching charger to charge the product, otherwise the product may be damaged.

2. If you need to replace the charger, please use a charger suitable for the product. If you use an unsuitable charger to charge the product, it will damage the product.

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.