A39 Intelligent Hearing Low-Noise Wide-Frequency One-Click Operation Sound Amplifier Deaf Hearing s

Product Features：

New brand and high quality!

Feel comfortable while boosting your hearing. Unlike other s, these look and feel stylish.

Stylish and modern white design.

Use the simple mechanism to switch on and off and adjust the volume input.

3 handy earplug sizes for customized comfort.

The handy box gains full power in just 2 hours, and your hearing s take just 1.5 hours to fully charge.

Just 1 on to adjust sound input.

Fast USB charging with long battery life.

Specification:

Maximum OSPL90: ≤ 120dB+3dB

High frequency average OSPL90: 108dB ± 4dB

Average gain: 25dB ± 5dB

Equivalent input noise level: ≤ 29+3dB

Total harmonic distortion: ≤ 10%

Frequency response range: 400Hz~4500Hz

Rated supply current consumption: ≤ 6mA

Working hours: 12-15 hours

Charging time: 90min-2 hours

Working current (charging box): ≤ 20mA

Working voltage (charging box): 3.7V

Charging time (charging box): 90min

Charging current (hearing ): ≤ 10mA

Charging voltage (hearing ): 5V

The number of times the hearing is charged by the charging box (dual hearing ): 3-4 times

Headphone built-in battery capacity: 20mA

Charging box capacity: 300mA

Charging instructions:

The case: Take the included charging cable and plug it into the port. When charging, the case will show a blue indicator light. Once the box is fully charged, it will change to white.

The hearing s: Carefully place them into the charging box. A blue light will be displayed while charging and a white light when they are fully charged.

Notes:

Adjust volume to the minimum before wearing.

Choose an earplug of slightly bigger size to avoid r.

Increase volume gradually to avoid sudden increase in sound.

If you hear a howling, check the ear (silica ) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.

Keep the ear plug clean

Package including:

1pc × Charging case

1pc × Micro-USB charging cable

2pc × Earbuds

6pc × Ear plugs (2 of each size)

1pc × Cleaning brush

1pc × Manual

Packed Safely in Retail Box.

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.